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class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indhold</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flyt til sidebjælken</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skjul</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Indledning</div> </a> </li> <li id="toc-Brug_af_videnskabelig_notation" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Brug_af_videnskabelig_notation"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Brug af videnskabelig notation</span> </div> </a> <ul id="toc-Brug_af_videnskabelig_notation-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Den_lange_og_den_korte_skala" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Den_lange_og_den_korte_skala"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Den lange og den korte skala</span> </div> </a> <ul id="toc-Den_lange_og_den_korte_skala-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Store_tal_i_astronomi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Store_tal_i_astronomi"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Store tal i astronomi</span> </div> </a> <ul id="toc-Store_tal_i_astronomi-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-I_hverdagen" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#I_hverdagen"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>I hverdagen</span> </div> </a> <ul id="toc-I_hverdagen-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Se_også" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_også"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Se også</span> </div> </a> <ul id="toc-Se_også-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referencer" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referencer"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Referencer</span> </div> </a> <ul id="toc-Referencer-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul indholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul indholdsfortegnelsen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Store tal</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikel på et andet sprog. Tilgængelig på 22 sprog" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-22" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">22 sprog</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A3%D8%B9%D8%AF%D8%A7%D8%AF_%D8%B5%D8%A7%D8%AA%D9%85%D8%A9" title="أعداد صاتمة – arabisk" lang="ar" hreflang="ar" data-title="أعداد صاتمة" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%93%D0%BE%D0%BB%D0%B5%D0%BC%D0%B8_%D1%87%D0%B8%D1%81%D0%BB%D0%B0" title="Големи числа – bulgarsk" lang="bg" hreflang="bg" data-title="Големи числа" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Nombres_grans" title="Nombres grans – catalansk" lang="ca" hreflang="ca" data-title="Nombres grans" data-language-autonym="Català" data-language-local-name="catalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Velk%C3%A1_%C4%8D%C3%ADsla" title="Velká čísla – tjekkisk" lang="cs" hreflang="cs" data-title="Velká čísla" data-language-autonym="Čeština" data-language-local-name="tjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Large_numbers" title="Large numbers – engelsk" lang="en" hreflang="en" data-title="Large numbers" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Nombregoj" title="Nombregoj – esperanto" lang="eo" hreflang="eo" data-title="Nombregoj" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%A1%D7%A4%D7%A8%D7%99%D7%9D_%D7%92%D7%93%D7%95%D7%9C%D7%99%D7%9D" title="מספרים גדולים – hebraisk" lang="he" hreflang="he" data-title="מספרים גדולים" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Bilangan_besar" title="Bilangan besar – indonesisk" lang="id" hreflang="id" data-title="Bilangan besar" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/St%C3%B3rar_t%C3%B6lur" title="Stórar tölur – islandsk" lang="is" hreflang="is" data-title="Stórar tölur" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%B7%A8%E5%A4%A7%E6%95%B0" title="巨大数 – japansk" lang="ja" hreflang="ja" data-title="巨大数" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%81%B0_%EC%88%98" title="큰 수 – koreansk" lang="ko" hreflang="ko" data-title="큰 수" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%93%D0%BE%D0%BB%D0%B5%D0%BC%D0%B8_%D0%B1%D1%80%D0%BE%D0%B5%D0%B2%D0%B8" title="Големи броеви – makedonsk" lang="mk" hreflang="mk" data-title="Големи броеви" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Grote_getallen" title="Grote getallen – nederlandsk" lang="nl" hreflang="nl" data-title="Grote getallen" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/N%C3%BAmeros_muito_grandes" title="Números muito grandes – portugisisk" lang="pt" hreflang="pt" data-title="Números muito grandes" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%91%D0%BE%D0%BB%D1%8C%D1%88%D0%B8%D0%B5_%D1%87%D0%B8%D1%81%D0%BB%D0%B0" title="Большие числа – russisk" lang="ru" hreflang="ru" data-title="Большие числа" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/N%C3%B9mmura_ranni" title="Nùmmura ranni – siciliansk" lang="scn" hreflang="scn" data-title="Nùmmura ranni" data-language-autonym="Sicilianu" data-language-local-name="siciliansk" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Ve%C4%BEk%C3%A9_%C4%8D%C3%ADsla" title="Veľké čísla – slovakisk" lang="sk" hreflang="sk" data-title="Veľké čísla" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Veliko_%C5%A1tevilo" title="Veliko število – slovensk" lang="sl" hreflang="sl" data-title="Veliko število" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Veliki_brojevi" title="Veliki brojevi – serbisk" lang="sr" hreflang="sr" data-title="Veliki brojevi" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/B%C3%BCy%C3%BCk_say%C4%B1lar" title="Büyük sayılar – tyrkisk" lang="tr" hreflang="tr" data-title="Büyük sayılar" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%92%D0%B5%D0%BB%D0%B8%D0%BA%D1%96_%D1%87%D0%B8%D1%81%D0%BB%D0%B0" title="Великі числа – ukrainsk" lang="uk" hreflang="uk" data-title="Великі числа" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%A4%A7%E6%95%B0_(%E6%95%B0%E5%AD%A6)" title="大数 (数学) – kinesisk" lang="zh" hreflang="zh" data-title="大数 (数学)" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1816844#sitelinks-wikipedia" title="Redigér sproglinks" class="wbc-editpage">Redigér links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerum"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Store_tal" title="Se indholdssiden [c]" accesskey="c"><span>Artikel</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskussion:Store_tal" rel="discussion" title="Diskussion om indholdet på siden [t]" accesskey="t"><span>Diskussion</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Ændr sprogvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">dansk</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visninger"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Store_tal"><span>Læs</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Store_tal&veaction=edit" title="Redigér denne side [v]" accesskey="v"><span>Redigér</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Store_tal&action=edit" title="Rediger kildekoden for denne side [e]" accesskey="e"><span>Rediger kildekode</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Store_tal&action=history" title="Tidligere versioner af denne side [h]" accesskey="h"><span>Se historik</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sideværktøjer"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Værktøjer" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Værktøjer</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Værktøjer</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flyt til sidebjælken</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">skjul</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Flere muligheder" > <div class="vector-menu-heading"> Handlinger </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Store_tal"><span>Læs</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Store_tal&veaction=edit" title="Redigér denne side [v]" accesskey="v"><span>Redigér</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Store_tal&action=edit" title="Rediger kildekoden for denne side [e]" accesskey="e"><span>Rediger kildekode</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Store_tal&action=history"><span>Se historik</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generelt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciel:Hvad_linker_hertil/Store_tal" title="Liste med alle sider som henviser hertil [j]" accesskey="j"><span>Hvad henviser hertil</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciel:Relaterede_%C3%A6ndringer/Store_tal" rel="nofollow" title="Seneste ændringer af sider som denne side henviser til [k]" accesskey="k"><span>Beslægtede ændringer</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=da&campaign=dk" title="Upload filer [u]" accesskey="u"><span>Upload fil</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speciel:Specialsider" title="Liste over alle specialsider [q]" accesskey="q"><span>Specialsider</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Store_tal&oldid=10834225" title="Permanent link til denne version af denne side"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Store_tal&action=info" title="Yderligere oplysninger om denne side"><span>Sideinformation</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speciel:Citer&page=Store_tal&id=10834225&wpFormIdentifier=titleform" title="Information om, hvordan man kan citere denne side"><span>Referer til denne side</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speciel:UrlShortener&url=https%3A%2F%2Fda.wikipedia.org%2Fwiki%2FStore_tal"><span>Hent forkortet URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Speciel:QrCode&url=https%3A%2F%2Fda.wikipedia.org%2Fwiki%2FStore_tal"><span>Download QR-kode</span></a></li> </ul> </div> </div> <div id="p-Organisation" class="vector-menu mw-portlet mw-portlet-Organisation" > <div class="vector-menu-heading"> Organisation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-contact" class="mw-list-item"><a href="/wiki/Wikipedia:Kontakt_Wikipedia"><span>Kontakt Wikipedia</span></a></li><li id="n-Wikimedia-Danmark" class="mw-list-item"><a href="https://dk.wikimedia.org/wiki/"><span>Wikimedia Danmark</span></a></li><li id="n-GLAM" class="mw-list-item"><a href="/wiki/Wikipedia:GLAM"><span>GLAM</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Udskriv/eksportér </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Speciel:Bog&bookcmd=book_creator&referer=Store+tal"><span>Lav en bog</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a 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src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Broom_icon.svg/40px-Broom_icon.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Broom_icon.svg/60px-Broom_icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Broom_icon.svg/80px-Broom_icon.svg.png 2x" data-file-width="400" data-file-height="400" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b>Der er ingen <a href="/wiki/Wikipedia:Kildeangivelser" title="Wikipedia:Kildeangivelser">kildehenvisninger</a> i denne artikel</b>, <a href="/wiki/Wikipedia:Verificerbarhed" title="Wikipedia:Verificerbarhed">hvilket er et problem</a>.<span class="hide-when-compact"> Begrundelsen kan findes på <a href="/wiki/Diskussion:Store_tal##" title="Diskussion:Store tal">diskussionssiden</a> eller i artikelhistorikken. 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Hvis ikke der tilføjes kilder, vil artiklen muligvis <a href="/wiki/Wikipedia:WHYCITE" class="mw-redirect" title="Wikipedia:WHYCITE">blive slettet</a></span> <small class="date-container"><i>(<span class="date">januar 2015</span>)</i></small><small class="hide-when-compact"><i> (<a href="/wiki/Hj%C3%A6lp:Fjernelse_af_kvalitetsskabeloner" title="Hjælp:Fjernelse af kvalitetsskabeloner">Lær hvordan og hvornår man kan fjerne denne skabelonbesked</a>)</i></small></div></td></tr></tbody></table><style data-mw-deduplicate="TemplateStyles:r11752169">.mw-parser-output th.mbox-text,.mw-parser-output td.mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output td.mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output td.mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output td.mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output table.ambox{margin:0 10%;border:1px solid #a2a9b1;border-left:10px solid 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10%;border-collapse:collapse;border:1px solid #c0c090;background-color:#f8eaba;min-width:80%;box-sizing:border-box}.mw-parser-output .tmbox.mbox-small{min-width:0}.mw-parser-output .mediawiki .mbox-inside .tmbox{margin:2px 0;width:100%}.mw-parser-output .mbox-inside .tmbox.mbox-small{line-height:1.5em;font-size:100%}.mw-parser-output table.tmbox-speedy{border:2px solid #b32424;background-color:#fee7e6}.mw-parser-output table.tmbox-delete{border:2px solid #b32424}.mw-parser-output table.tmbox-content{border:2px solid #f28500}.mw-parser-output table.tmbox-style{border:2px solid #fc3}.mw-parser-output table.tmbox-move{border:2px solid #9932cc}.mw-parser-output table.tmbox-protection,.mw-parser-output table.tmbox-notice{border:1px solid #c0c090}.mw-parser-output table.fmbox{clear:both;margin:0.2em 0;width:100%;border:1px solid #a2a9b1;background-color:#f8f9fa;box-sizing:border-box}.mw-parser-output table.fmbox-system{background-color:#f8f9fa}.mw-parser-output table.fmbox-warning{border:1px solid #bb7070;background-color:#ffdbdb}.mw-parser-output table.fmbox-editnotice{background-color:transparent}.mw-parser-output div.mw-warning-with-logexcerpt,.mw-parser-output div.mw-lag-warn-high,.mw-parser-output div.mw-cascadeprotectedwarning,.mw-parser-output div/**/#mw-protect-cascadeon,.mw-parser-output div.titleblacklist-warning,.mw-parser-output div.locked-warning{clear:both;margin:0.2em 0;border:1px solid #bb7070;background-color:#ffdbdb;padding:0.25em 0.9em;box-sizing:border-box}html body.mediawiki .mw-parser-output .mbox-small{clear:right;float:right;margin:4px 0 4px 1em;box-sizing:border-box;width:238px;font-size:88%;line-height:1.25em}html body.mediawiki .mw-parser-output .mbox-small-left{margin:4px 1em 4px 0;box-sizing:border-box;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .compact-ambox table .mbox-image,.mw-parser-output .compact-ambox table .mbox-imageright,.mw-parser-output .compact-ambox table .mbox-empty-cell{display:none}.mw-parser-output .compact-ambox table.ambox{border:none;border-collapse:collapse;background-color:transparent;margin:0 0 0 1.6em!important;padding:0!important;width:auto;display:block}body.mediawiki .mw-parser-output .compact-ambox table.mbox-small-left{font-size:100%;width:auto;margin:0}.mw-parser-output .compact-ambox table .mbox-text{padding:0;margin:0}.mw-parser-output .compact-ambox table .mbox-text-span{display:list-item;line-height:1.5em;list-style-type:square}.mw-parser-output .skin-vector .compact-ambox table .mbox-text-span{list-style-type:disc}.mw-parser-output .compact-ambox .hide-when-compact{display:none}.mw-parser-output .template-documentation{clear:both;margin:1em 0 0 0;border:1px solid #aaa;background-color:#ecfcf4;padding:1em}</style> <p><b>Store tal</b> bruges inden for en række matematiske og naturvidenskabelige discipliner. En række matematikere og computerteoretikere har arbejdet med at generere store tal. Fx <a href="/w/index.php?title=Knuths_pil_op-notation&action=edit&redlink=1" class="new" title="Knuths pil op-notation (ikke skrevet endnu)">Knuths pil op-notation</a>, <a href="/w/index.php?title=Mosers_notation&action=edit&redlink=1" class="new" title="Mosers notation (ikke skrevet endnu)">Mosers notation</a> og <a href="/w/index.php?title=Ackermanns_funktion&action=edit&redlink=1" class="new" title="Ackermanns funktion (ikke skrevet endnu)">Ackermanns funktion</a>. Sidstnævnte finder stor anvendelse inden for <a href="/wiki/Algoritme" title="Algoritme">algoritmeteori</a>. Det største brugte tal i matematiske beviser er <a href="/wiki/Grahams_tal" title="Grahams tal">Grahams tal</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Brug_af_videnskabelig_notation">Brug af videnskabelig notation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Store_tal&veaction=edit&section=1" title="Redigér afsnit: Brug af videnskabelig notation" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Store_tal&action=edit&section=1" title="Edit section's source code: Brug af videnskabelig notation"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Videnskabelig_notation" title="Videnskabelig notation">Videnskabelig notation</a> blev konstrueret for at styre det brede omfang af værdier, som findes i videnskabelige emner. </p><p>1,0 × 10<sup>9</sup> betyder <a href="/wiki/Milliard" class="mw-redirect" title="Milliard">milliard</a>: et 1-tal efterfulgt af ni nuller: 1 000 000 000, og 1,0 × 10<sup>−9</sup> betyder en i milliartendedel eller 0,000 000 001. Ved at skrive 10<sup>9</sup> i stedet for ni nuller, sparer man en masse nuller bare for at se, hvor langt tallet er. </p> <div class="mw-heading mw-heading2"><h2 id="Den_lange_og_den_korte_skala">Den lange og den korte skala</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Store_tal&veaction=edit&section=2" title="Redigér afsnit: Den lange og den korte skala" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Store_tal&action=edit&section=2" title="Edit section's source code: Den lange og den korte skala"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="detail"><span><span typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Nuvola_apps_download_manager2-70%25.svg/15px-Nuvola_apps_download_manager2-70%25.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Nuvola_apps_download_manager2-70%25.svg/23px-Nuvola_apps_download_manager2-70%25.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Nuvola_apps_download_manager2-70%25.svg/30px-Nuvola_apps_download_manager2-70%25.svg.png 2x" data-file-width="60" data-file-height="60" /></span></span> <span>Hovedartikel: <a href="/wiki/Den_lange_og_den_korte_skala_for_store_tal" title="Den lange og den korte skala for store tal">Den lange og den korte skala for store tal</a>.</span></span></div> <p>Der er to modstridende systemer til navngivning af store tal, der begge er baseret på talord fra <a href="/wiki/Latin" title="Latin">latin</a>. </p><p>I Danmark og mange andre lande, herunder de fleste europæiske og deres tidligere kolonier, bruges normalt den såkaldte <a href="/wiki/Den_lange_og_den_korte_skala_for_store_tal" title="Den lange og den korte skala for store tal">lange skala</a>, hvor 10<sup>6n</sup> (fra n=2) betegnes med det latinske ord for heltallet <i>n</i> kombineret med endelsen '-llion', fx trillion = 10<sup>18</sup>. 10<sup>6n+3</sup> betegnes så med endelsen "-lliard" på samme rod, fx trilliard = 10<sup>21</sup>. </p><p>I andre, særligt engelsktalende, lande bruges den <a href="/wiki/Den_lange_og_den_korte_skala_for_store_tal" title="Den lange og den korte skala for store tal">korte skala</a>, hvor (n)-llion betegner 10<sup>3n+3</sup>, således at trillion = 10<sup>12</sup>. Storbritannien brugte i en årrække den lange skala, men er siden officielt gået over til den korte. </p><p>Guinnes Rekordbog har optaget "centillion" - i begge de to forskellige betydninger - som "det største leksikografisk anerkendte tal", altså det største som findes i (anerkendte) ordbøger. </p><p>På arabisk og visse andre mellemøstlige sprog bruges varianter af "milliard" om 10<sup>9</sup>, som i den lange skala, mens den korte skala bruges fra 10<sup>12</sup>("billion") og opefter. </p><p>Forskellene er særligt et problem, når der kommunikeres på tværs af sprog- og landegrænser, og særligt ved laveste tvetydige tal, "billion" og "trillion", der ofte bruges både i daglig tale og skrift fx når der tales om nationaløkonomi og globale befolkningstal. De større tal bruges oftest i en faglig sammenhæng, hvor det er mere naturligt at bruge videnskabelig notation, og hvor deltagerne typisk er opmærksomme på faldgruben. </p><p>Ved angivelse af fysiske størrelser og lagerenheder bruges ofte <a href="/wiki/SI-pr%C3%A6fiks" title="SI-præfiks">SI-præfiks</a> i stedet for talord, fx <a href="/wiki/Terawatt" class="mw-redirect" title="Terawatt">terawatt</a> (TW) og <a href="/wiki/Gigabyte" title="Gigabyte">gigabyte</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Store_tal_i_astronomi">Store tal i astronomi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Store_tal&veaction=edit&section=3" title="Redigér afsnit: Store tal i astronomi" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Store_tal&action=edit&section=3" title="Edit section's source code: Store tal i astronomi"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Store tal for længde og tid findes i <a href="/wiki/Astronomi" title="Astronomi">astronomi</a> og <a href="/wiki/Kosmologi_(astronomi)" title="Kosmologi (astronomi)">kosmologi</a>: Den nuværende <a href="/wiki/Big_bang" class="mw-redirect" title="Big bang">big bang</a>-model af universet siger, at det er 13,7 milliarder år (4,3 × 10<sup>17</sup> sekunder) gammelt, og at det <a href="/wiki/Observerbare_univers" title="Observerbare univers">observerbare univers</a> er 93 milliarder <a href="/wiki/Lys%C3%A5r" title="Lysår">lysår</a> i diameter (8,8 × 10<sup>26</sup> meter) og indeholder 5 × 10<sup>22</sup> stjerner, der ligger i omkring 125 milliarder (1,25 × 10<sup>11</sup>) galakser ifølge observationer af <a href="/wiki/Hubble-rumteleskopet" title="Hubble-rumteleskopet">Hubble-rumteleskopet</a>. Antallet af partikler i universet er i <a href="/wiki/Simon_Singh" title="Simon Singh">Simon Singhs</a> bog om <a href="/wiki/Fermats_sidste_s%C3%A6tning" title="Fermats sidste sætning">Fermats sidste sætning</a> angivet til 10<sup>89</sup>. Det giver en fornemmelse af store tals størrelse. </p> <div class="mw-heading mw-heading2"><h2 id="I_hverdagen">I hverdagen</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Store_tal&veaction=edit&section=4" title="Redigér afsnit: I hverdagen" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Store_tal&action=edit&section=4" title="Edit section's source code: I hverdagen"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Antallet af bits på computerharddisk (i 2009 er det typisk omkring 10<sup>13</sup>, 500-1000 <a href="/wiki/Gigabyte" title="Gigabyte">GB</a>)</li> <li>Antallet af celler i menneskets krop (mere end 10<sup>14</sup>)</li> <li>Antal måder man kan blande et spil spillekort på (52! svarende til ca. 8,07 * 10<sup>67</sup>)</li></ul> <div class="mw-heading mw-heading2"><h2 id="Se_også"><span id="Se_ogs.C3.A5"></span>Se også</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Store_tal&veaction=edit&section=5" title="Redigér afsnit: Se også" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Store_tal&action=edit&section=5" title="Edit section's source code: Se også"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Den_lange_og_den_korte_skala_for_store_tal" title="Den lange og den korte skala for store tal">Den lange og den korte skala for store tal</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Referencer">Referencer</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Store_tal&veaction=edit&section=6" title="Redigér afsnit: Referencer" 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.navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}</style></div><div role="navigation" class="navbox" aria-labelledby="Tal_i_matematik" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r11759279"><style data-mw-deduplicate="TemplateStyles:r11746895">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-vis"><a href="/wiki/Skabelon:Navboks_Tal" title="Skabelon:Navboks Tal"><abbr title="Se denne skabelon" style=";;background:none transparent;border:none;box-shadow:none;padding:0;">v</abbr></a></li><li class="nv-diskussion"><a href="/wiki/Skabelondiskussion:Navboks_Tal" title="Skabelondiskussion:Navboks Tal"><abbr title="Diskuter denne skabelon" style=";;background:none transparent;border:none;box-shadow:none;padding:0;">d</abbr></a></li><li class="nv-rediger"><a href="/wiki/Speciel:EditPage/Skabelon:Navboks_Tal" title="Speciel:EditPage/Skabelon:Navboks Tal"><abbr title="Rediger denne skabelon" style=";;background:none transparent;border:none;box-shadow:none;padding:0;">r</abbr></a></li></ul></div><div id="Tal_i_matematik" style="font-size:114%;margin:0 4em"><a href="/wiki/Tal" title="Tal">Tal</a> i <a href="/wiki/Matematik" title="Matematik">matematik</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Elementære talmængder</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {N} \subset \mathbb {Z} \subset \mathbb {Q} \subset \mathbb {R} \subset \mathbb {C} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">N</mi> </mrow> <mo>⊂</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">Z</mi> </mrow> <mo>⊂</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">Q</mi> </mrow> <mo>⊂</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">R</mi> </mrow> <mo>⊂</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">C</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {N} \subset \mathbb {Z} \subset \mathbb {Q} \subset \mathbb {R} \subset \mathbb {C} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0579ab35e12fec7fdceb06b0085830426734b946" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:20.787ex; height:2.509ex;" alt="{\displaystyle \mathbb {N} \subset \mathbb {Z} \subset \mathbb {Q} \subset \mathbb {R} \subset \mathbb {C} }"></span> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Naturligt_tal" title="Naturligt tal">Naturlige tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {N} =\{1,2,3,\ldots \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">N</mi> </mrow> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mn>1</mn> <mo>,</mo> <mn>2</mn> <mo>,</mo> <mn>3</mn> <mo>,</mo> <mo>…</mo> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {N} =\{1,2,3,\ldots \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/507d3ebc9284027ba7bf10fe727905d3d371f898" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:16.414ex; height:2.843ex;" alt="{\displaystyle \mathbb {N} =\{1,2,3,\ldots \}}"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Heltal" title="Heltal">Hele tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {Z} =\{\ldots ,-2,-1,0,1,2,\ldots \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">Z</mi> </mrow> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mo>…</mo> <mo>,</mo> <mo>−</mo> <mn>2</mn> <mo>,</mo> <mo>−</mo> <mn>1</mn> <mo>,</mo> <mn>0</mn> <mo>,</mo> <mn>1</mn> <mo>,</mo> <mn>2</mn> <mo>,</mo> <mo>…</mo> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {Z} =\{\ldots ,-2,-1,0,1,2,\ldots \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3bb86565c64e0911a8e7479786db42310323b37f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:28.439ex; height:2.843ex;" alt="{\displaystyle \mathbb {Z} =\{\ldots ,-2,-1,0,1,2,\ldots \}}"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Rationale_tal" title="Rationale tal">Rationale tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {Q} =\{{\tfrac {0}{1}},\,{\tfrac {1}{1}},\,-{\tfrac {1}{1}},\,{\tfrac {1}{2}},\,-{\tfrac {1}{2}},\,{\tfrac {1}{3}},\,-{\tfrac {1}{3}},\,{\tfrac {2}{3}},\,-{\tfrac {2}{3}},\,\ldots \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">Q</mi> </mrow> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>0</mn> <mn>1</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>1</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>1</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>2</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>2</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <mspace width="thinmathspace" /> <mo>…</mo> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {Q} =\{{\tfrac {0}{1}},\,{\tfrac {1}{1}},\,-{\tfrac {1}{1}},\,{\tfrac {1}{2}},\,-{\tfrac {1}{2}},\,{\tfrac {1}{3}},\,-{\tfrac {1}{3}},\,{\tfrac {2}{3}},\,-{\tfrac {2}{3}},\,\ldots \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/5f4e56d4cdcd9612f5643d1de7cfc5b720ff3dc7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:44.9ex; height:3.676ex;" alt="{\displaystyle \mathbb {Q} =\{{\tfrac {0}{1}},\,{\tfrac {1}{1}},\,-{\tfrac {1}{1}},\,{\tfrac {1}{2}},\,-{\tfrac {1}{2}},\,{\tfrac {1}{3}},\,-{\tfrac {1}{3}},\,{\tfrac {2}{3}},\,-{\tfrac {2}{3}},\,\ldots \}}"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Reelle_tal" title="Reelle tal">Reelle tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {R} =\{{\sqrt {2}},\mathrm {e} ,\pi ,\ldots \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">R</mi> </mrow> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mn>2</mn> </msqrt> </mrow> <mo>,</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">e</mi> </mrow> <mo>,</mo> <mi>π</mi> <mo>,</mo> <mo>…</mo> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {R} =\{{\sqrt {2}},\mathrm {e} ,\pi ,\ldots \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/aa5de98f0e0baeb23efb6b5cef3310faa63f0cf1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:18.389ex; height:3.176ex;" alt="{\displaystyle \mathbb {R} =\{{\sqrt {2}},\mathrm {e} ,\pi ,\ldots \}}"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Komplekse_tal" title="Komplekse tal">Komplekse tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {C} =\{a+b\cdot \mathrm {i} \mid a,b\in \mathbb {R} \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">C</mi> </mrow> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mi>a</mi> <mo>+</mo> <mi>b</mi> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">i</mi> </mrow> <mo>∣</mo> <mi>a</mi> <mo>,</mo> <mi>b</mi> <mo>∈</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">R</mi> </mrow> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {C} =\{a+b\cdot \mathrm {i} \mid a,b\in \mathbb {R} \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f0c6cf45b59935160795310250768d0815e10b9c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:24.212ex; height:2.843ex;" alt="{\displaystyle \mathbb {C} =\{a+b\cdot \mathrm {i} \mid a,b\in \mathbb {R} \}}"></span></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Andre elementære talmængder</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Primtal" title="Primtal">Primtal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {P} =\{2,3,5,7,11,\ldots \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">P</mi> </mrow> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mn>2</mn> <mo>,</mo> <mn>3</mn> <mo>,</mo> <mn>5</mn> <mo>,</mo> <mn>7</mn> <mo>,</mo> <mn>11</mn> <mo>,</mo> <mo>…</mo> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {P} =\{2,3,5,7,11,\ldots \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/31558d885a3f4bc63feb3cb45406f7052055d41e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:21.711ex; height:2.843ex;" alt="{\displaystyle \mathbb {P} =\{2,3,5,7,11,\ldots \}}"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Irrationale_tal" title="Irrationale tal">Irrationale tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {I} =\mathbb {R} \setminus \mathbb {Q} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">I</mi> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">R</mi> </mrow> <mo class="MJX-variant">∖</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">Q</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {I} =\mathbb {R} \setminus \mathbb {Q} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/720d781e3106162ca1f4e2ff351e5714f4308c23" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:9.684ex; height:2.843ex;" alt="{\displaystyle \mathbb {I} =\mathbb {R} \setminus \mathbb {Q} }"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Konstruerbare_tal" title="Konstruerbare tal">Konstruerbare tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Algebraiske_tal" title="Algebraiske tal">Algebraiske tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Transcendente_tal" title="Transcendente tal">Transcendente tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Beregnelige_tal" title="Beregnelige tal">Beregnelige tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Imagin%C3%A6re_tal" class="mw-redirect" title="Imaginære tal">Imaginære tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Komplekse udvidelser</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Bikomplekse_tal&action=edit&redlink=1" class="new" title="Bikomplekse tal (ikke skrevet endnu)">Bikomplekse tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hyperkomplekse_tal" class="mw-redirect" title="Hyperkomplekse tal">Hyperkomplekse tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Kvaternioner" title="Kvaternioner">Kvaternioner</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbb {H} =\{a+b\cdot \mathrm {i} +c\cdot \mathrm {j} +d\cdot \mathrm {k} \,\mid a,\,b,\,c,\,d\,\in \mathbb {R} \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">H</mi> </mrow> <mo>=</mo> <mo fence="false" stretchy="false">{</mo> <mi>a</mi> <mo>+</mo> <mi>b</mi> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">i</mi> </mrow> <mo>+</mo> <mi>c</mi> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">j</mi> </mrow> <mo>+</mo> <mi>d</mi> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">k</mi> </mrow> <mspace width="thinmathspace" /> <mo>∣</mo> <mi>a</mi> <mo>,</mo> <mspace width="thinmathspace" /> <mi>b</mi> <mo>,</mo> <mspace width="thinmathspace" /> <mi>c</mi> <mo>,</mo> <mspace width="thinmathspace" /> <mi>d</mi> <mspace width="thinmathspace" /> <mo>∈</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="double-struck">R</mi> </mrow> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbb {H} =\{a+b\cdot \mathrm {i} +c\cdot \mathrm {j} +d\cdot \mathrm {k} \,\mid a,\,b,\,c,\,d\,\in \mathbb {R} \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7e2249f71034ac44211479ac180f18eca9baccea" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:43.77ex; height:2.843ex;" alt="{\displaystyle \mathbb {H} =\{a+b\cdot \mathrm {i} +c\cdot \mathrm {j} +d\cdot \mathrm {k} \,\mid a,\,b,\,c,\,d\,\in \mathbb {R} \}}"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Oktonioner&action=edit&redlink=1" class="new" title="Oktonioner (ikke skrevet endnu)">Oktonioner</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Sedenioner&action=edit&redlink=1" class="new" title="Sedenioner (ikke skrevet endnu)">Sedenioner</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Superreelle_tal&action=edit&redlink=1" class="new" title="Superreelle tal (ikke skrevet endnu)">Superreelle tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Hyperreelle_tal&action=edit&redlink=1" class="new" title="Hyperreelle tal (ikke skrevet endnu)">Hyperreelle tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Surreelle_tal" title="Surreelle tal">Surreelle tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Taltyper og særlige tal</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Nominelle_tal&action=edit&redlink=1" class="new" title="Nominelle tal (ikke skrevet endnu)">Nominelle tal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ordinaltal" title="Ordinaltal">Ordinaltal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Kardinaltal" title="Kardinaltal">Kardinaltal</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \{\aleph _{0},\aleph _{1},\aleph _{2},\ldots \}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo fence="false" stretchy="false">{</mo> <msub> <mi mathvariant="normal">ℵ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> <mo>,</mo> <msub> <mi mathvariant="normal">ℵ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>,</mo> <msub> <mi mathvariant="normal">ℵ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>,</mo> <mo>…</mo> <mo fence="false" stretchy="false">}</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \{\aleph _{0},\aleph _{1},\aleph _{2},\ldots \}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fbebd1c93b70352443e7d9aa3657c7c574a62cc4" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:15.573ex; height:2.843ex;" alt="{\displaystyle \{\aleph _{0},\aleph _{1},\aleph _{2},\ldots \}}"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=P-adiske_tal&action=edit&redlink=1" class="new" title="P-adiske tal (ikke skrevet endnu)">P-adiske tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Heltalsf%C3%B8lge" title="Heltalsfølge">Heltalsfølger</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a class="mw-selflink selflink">Store tal</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Uendelighed" title="Uendelighed">Uendeligheder</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \infty }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">∞</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \infty }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c26c105004f30c27aa7c2a9c601550a4183b1f21" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.324ex; height:1.676ex;" alt="{\displaystyle \infty }"></span></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Konstanter</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Pi_(tal)" title="Pi (tal)"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \pi }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>π</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \pi }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9be4ba0bb8df3af72e90a0535fabcc17431e540a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.332ex; height:1.676ex;" alt="{\displaystyle \pi }"></span></a></li> <li><a href="/wiki/Imagin%C3%A6re_enhed" title="Imaginære enhed"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {i} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">i</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathrm {i} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/18f0f09f6fc40e634d34aed6e205ac0f7a40e062" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.647ex; height:2.176ex;" alt="{\displaystyle \mathrm {i} }"></span></a></li> <li><a href="/wiki/E_(tal)" title="E (tal)"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {e} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">e</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathrm {e} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3a1f6ea7bf1c1e53e8200cb7e2917ccb23df457b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.032ex; height:1.676ex;" alt="{\displaystyle \mathrm {e} }"></span></a></li> <li><a href="/wiki/Det_gyldne_snit" title="Det gyldne snit"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \varphi }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>φ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \varphi }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/33ee699558d09cf9d653f6351f9fda0b2f4aaa3e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:1.52ex; height:2.176ex;" alt="{\displaystyle \varphi }"></span></a></li> <li><a href="/w/index.php?title=Euler-Mascheroni_konstant&action=edit&redlink=1" class="new" title="Euler-Mascheroni konstant (ikke skrevet endnu)"><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \gamma }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>γ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \gamma }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a223c880b0ce3da8f64ee33c4f0010beee400b1a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:1.262ex; height:2.176ex;" alt="{\displaystyle \gamma }"></span></a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r11759279"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r11752089"></div><div role="navigation" class="navbox" aria-labelledby="Store_tal" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r11759279"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r11746895"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-vis"><a href="/wiki/Skabelon:Store_tal" title="Skabelon:Store tal"><abbr title="Se denne skabelon" style=";;background:none transparent;border:none;box-shadow:none;padding:0;">v</abbr></a></li><li class="nv-diskussion"><a href="/wiki/Skabelondiskussion:Store_tal" title="Skabelondiskussion:Store tal"><abbr title="Diskuter denne skabelon" style=";;background:none transparent;border:none;box-shadow:none;padding:0;">d</abbr></a></li><li class="nv-rediger"><a href="/wiki/Speciel:EditPage/Skabelon:Store_tal" title="Speciel:EditPage/Skabelon:Store tal"><abbr title="Rediger denne skabelon" style=";;background:none transparent;border:none;box-shadow:none;padding:0;">r</abbr></a></li></ul></div><div id="Store_tal" style="font-size:114%;margin:0 4em"><a class="mw-selflink selflink">Store tal</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">I størrelsesorden</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/1000_(tal)" title="1000 (tal)">Tusind</a></li> <li><a href="/wiki/10.000_(tal)" title="10.000 (tal)">Titusind</a></li> <li><a href="/wiki/Million" title="Million">Million</a></li> <li><a href="/wiki/1.000.000.000" title="1.000.000.000">Milliard</a></li> <li><a href="/wiki/Billion" title="Billion">Billion</a></li> <li><a href="/wiki/1.000.000.000.000.000" title="1.000.000.000.000.000">Billiard</a></li> <li><a href="/wiki/Trillion" title="Trillion">Trillion</a></li> <li><a href="/wiki/1.000.000.000.000.000.000.000.000.000.000" title="1.000.000.000.000.000.000.000.000.000.000">Kvintillion</a></li> <li><a href="/wiki/Septillion" class="mw-redirect" title="Septillion">Septillion</a></li> <li><a href="/wiki/Googol" title="Googol">Googol</a></li> <li><a href="/wiki/Kvinkvagintillion" class="mw-redirect" title="Kvinkvagintillion">Kvinkvagintillion</a></li> <li><a href="/wiki/Centillion" title="Centillion">Centillion</a></li> <li><a href="/wiki/Millillion" class="mw-redirect" title="Millillion">Millillion</a></li> <li><a href="/wiki/Googol#Googolplex" title="Googol">Googolplex</a></li> <li><a href="/wiki/Googol#Googolplexian" title="Googol">Googolplexian</a></li> <li><a href="/wiki/Skewes%27_tal" title="Skewes' tal">Skewes' tal</a></li> <li><a href="/w/index.php?title=Steinhaus%E2%80%93Mosers_notation&action=edit&redlink=1" class="new" title="Steinhaus–Mosers notation (ikke skrevet endnu)">Mosers tal</a></li> <li><a href="/wiki/Grahams_tal" title="Grahams tal">Grahams tal</a></li> <li><a href="/w/index.php?title=Kruskals_s%C3%A6tning&action=edit&redlink=1" class="new" title="Kruskals sætning (ikke skrevet endnu)">TREE(3)</a></li> <li><a href="/w/index.php?title=Friedmans_SSCG-funktion&action=edit&redlink=1" class="new" title="Friedmans SSCG-funktion (ikke skrevet endnu)">SSCG(3)</a></li> <li><a href="/w/index.php?title=Rayos_tal&action=edit&redlink=1" class="new" title="Rayos tal (ikke skrevet endnu)">Rayos tal</a></li> <li><a href="/w/index.php?title=Transfinitte_tal&action=edit&redlink=1" class="new" title="Transfinitte tal (ikke skrevet endnu)">Transfinitte tal</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Udtryksmetoder</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Notationer</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Videnskabelig_notation" title="Videnskabelig notation">Videnskabelig notation</a></li> <li><a href="/w/index.php?title=Knuths_pilnotation&action=edit&redlink=1" class="new" title="Knuths pilnotation (ikke skrevet endnu)">Knuths pilnotation</a></li> <li><a href="/w/index.php?title=Conways_k%C3%A6det_pilenotation&action=edit&redlink=1" class="new" title="Conways kædet pilenotation (ikke skrevet endnu)">Conways kædet pilenotation</a></li> <li><a href="/w/index.php?title=Steinhaus%E2%80%93Mosers_notation&action=edit&redlink=1" class="new" title="Steinhaus–Mosers notation (ikke skrevet endnu)">Steinhaus–Mosers notation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Operatorer</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hyperoperator" title="Hyperoperator">Hyperoperator</a> <ul><li><a href="/wiki/Tetration" title="Tetration">Tetration</a></li> <li><a href="/w/index.php?title=Pentation&action=edit&redlink=1" class="new" title="Pentation (ikke skrevet endnu)">Pentation</a></li></ul></li> <li><a href="/w/index.php?title=Ackermannfunktionen&action=edit&redlink=1" class="new" title="Ackermannfunktionen (ikke skrevet endnu)">Ackermannfunktionen</a></li> <li><a href="/w/index.php?title=Grzegorczyks_hierarki&action=edit&redlink=1" class="new" title="Grzegorczyks hierarki (ikke skrevet endnu)">Grzegorczyks hierarki</a></li> <li><a href="/w/index.php?title=Hurtigv%C3%A6kst_hierarki&action=edit&redlink=1" class="new" title="Hurtigvækst hierarki (ikke skrevet endnu)">hurtigvækst hierarki</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Relaterede artikler</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Titanprimtal" title="Titanprimtal">Titanprimtal</a></li> <li><a href="/wiki/Gigantprimtal" title="Gigantprimtal">Gigantprimtal</a></li> <li><a href="/wiki/Megaprimtal" title="Megaprimtal">Megaprimtal</a></li> <li><a href="/w/index.php?title=St%C3%B8rste_kendte_primtal&action=edit&redlink=1" class="new" title="Største kendte primtal (ikke skrevet endnu)">Største kendte primtal</a></li> <li><a href="/wiki/Infinitesimal" title="Infinitesimal">Infinitesimal</a></li> <li><a href="/wiki/Den_lange_og_den_korte_skala_for_store_tal" title="Den lange og den korte skala for store tal">Den lange og den korte skala for store tal</a></li> <li><a href="/wiki/Talsystem" title="Talsystem">Talsystem</a></li> <li><a href="/wiki/Talord" title="Talord">Talord</a></li> <li><a href="/wiki/Toerpotens" title="Toerpotens">Toerpotens</a></li> <li><a href="/w/index.php?title=Tierpotens&action=edit&redlink=1" class="new" 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