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<title>Sammensatt tall</title>
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<wx:section level="1" title="Sammensatt tall" id="wxsec1"><h1 class="pagetitle" id="wx1">Sammensatt tall</h1>

<p id="wx2">Et <b id="wx3">sammensatt tall</b> er et <a href="/wno/Naturlig_tall" title="Naturlig tall" wx:linktype="known" wx:pagename="Naturlig_tall" wx:page_id="3509" id="wx4">naturlig tall</a> større enn <a href="/wno/1_%28tall%29" title="1 (tall)" wx:linktype="known" wx:pagename="1_(tall)" wx:page_id="4892" id="wx5">1</a> som ikke er et <a href="/wno/Primtall" title="Primtall" wx:linktype="known" wx:pagename="Primtall" wx:page_id="4917" id="wx6">primtall</a>. Alle sammensatte tall er et produkt av to eller flere primtall. De ti første sammensatte tallene er:</p>

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<dd id="wx8"><a href="/wno/4_%28tall%29" title="4 (tall)" wx:linktype="known" wx:pagename="4_(tall)" wx:page_id="4895" id="wx9">4</a>
<p id="wx10">, <a href="/wno/6_%28tall%29" title="6 (tall)" wx:linktype="known" wx:pagename="6_(tall)" wx:page_id="4897" id="wx11">6</a>, <a href="/wno/8_%28tall%29" title="8 (tall)" wx:linktype="known" wx:pagename="8_(tall)" wx:page_id="4899" id="wx12">8</a>, <a href="/wno/9_%28tall%29" title="9 (tall)" wx:linktype="known" wx:pagename="9_(tall)" wx:page_id="4900" id="wx13">9</a>, <a href="/wno/10_%28tall%29" title="10 (tall)" wx:linktype="known" wx:pagename="10_(tall)" wx:page_id="4901" id="wx14">10</a>, <a href="/wno/12_%28tall%29" title="12 (tall)" wx:linktype="known" wx:pagename="12_(tall)" wx:page_id="4903" id="wx15">12</a>, <a href="/wno/14_%28tall%29" title="14 (tall)" wx:linktype="known" wx:pagename="14_(tall)" wx:page_id="4905" id="wx16">14</a>, <a href="/wno/15_%28tall%29" title="15 (tall)" wx:linktype="known" wx:pagename="15_(tall)" wx:page_id="4906" id="wx17">15</a>, <a href="/wno/16_%28tall%29" title="16 (tall)" wx:linktype="known" wx:pagename="16_(tall)" wx:page_id="4907" id="wx18">16</a> og <a href="/wno/18_%28tall%29" title="18 (tall)" wx:linktype="known" wx:pagename="18_(tall)" wx:page_id="4909" id="wx19">18</a>.</p>
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<p id="wx20">En serie med påfølgende, sammensatte tall (som 8, 9, 10) kalles en <i id="wx21"><a href="/wno/Primtalls%C3%B8rken" title="Primtallsørken" wx:linktype="known" wx:pagename="Primtallsørken" wx:page_id="30999" id="wx22">primtallsørken</a></i>.</p>
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<a href="/wno/index.php?title=Spesial:Categories&amp;article=Sammensatt_tall" title="Spesial:Categories" wx:linktype="known" wx:pagename="Spesial:Categories" id="wx23">Kategori</a>: <span dir="ltr" id="wx24"><a href="/wno/Kategori:Tallteori" title="Kategori:Tallteori" wx:linktype="known" wx:pagename="Kategori:Tallteori" wx:page_id="111288" id="wx25">Tallteori</a></span></div>
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Andre språk: <a href="http://ar.wikipedia.org/wiki/%D8%B9%D8%AF%D8%AF_%D9%85%D8%B1%D9%83%D8%A8" class="external" wx:linktype="interwiki" wx:pagename="ar:عدد_مركب" id="wx26">العربية</a> | <a href="http://ca.wikipedia.org/wiki/Nombre_compost" class="external" wx:linktype="interwiki" wx:pagename="ca:Nombre_compost" id="wx27">Català</a> | <a href="http://cs.wikipedia.org/wiki/Slo%C5%BEen%C3%A9_%C4%8D%C3%ADslo" class="external" wx:linktype="interwiki" wx:pagename="cs:Složené_číslo" id="wx28">Česky</a> | <a href="http://de.wikipedia.org/wiki/Zusammengesetzte_Zahl" class="external" wx:linktype="interwiki" wx:pagename="de:Zusammengesetzte_Zahl" id="wx29">Deutsch</a> | <a href="http://en.wikipedia.org/wiki/Composite_number" class="external" wx:linktype="interwiki" wx:pagename="en:Composite_number" id="wx30">English</a> | <a href="http://es.wikipedia.org/wiki/N%C3%BAmeros_compuestos" class="external" wx:linktype="interwiki" wx:pagename="es:Números_compuestos" id="wx31">Español</a> | <a href="http://eo.wikipedia.org/wiki/Komponigita_nombro" class="external" wx:linktype="interwiki" wx:pagename="eo:Komponigita_nombro" id="wx32">Esperanto</a> | <a href="http://fa.wikipedia.org/wiki/%D8%A7%D8%B9%D8%AF%D8%A7%D8%AF_%D9%85%D8%B1%DA%A9%D8%A8" class="external" wx:linktype="interwiki" wx:pagename="fa:اعداد_مرکب" id="wx33">فارسی</a> | <a href="http://fr.wikipedia.org/wiki/Nombre_compos%C3%A9" class="external" wx:linktype="interwiki" wx:pagename="fr:Nombre_composé" id="wx34">Français</a> | <a href="http://gl.wikipedia.org/wiki/N%C3%BAmero_composto" class="external" wx:linktype="interwiki" wx:pagename="gl:Número_composto" id="wx35">Galego</a> | <a href="http://ko.wikipedia.org/wiki/%ED%95%A9%EC%84%B1%EC%88%98" class="external" wx:linktype="interwiki" wx:pagename="ko:합성수" id="wx36">한국어</a> | <a href="http://id.wikipedia.org/wiki/Bilangan_komposit" class="external" wx:linktype="interwiki" wx:pagename="id:Bilangan_komposit" id="wx37">Bahasa Indonesia</a> | <a href="http://it.wikipedia.org/wiki/Numero_composto" class="external" wx:linktype="interwiki" wx:pagename="it:Numero_composto" id="wx38">Italiano</a> | <a href="http://he.wikipedia.org/wiki/%D7%9E%D7%A1%D7%A4%D7%A8_%D7%A4%D7%A8%D7%99%D7%A7" class="external" wx:linktype="interwiki" wx:pagename="he:מספר_פריק" id="wx39">עברית</a> | <a href="http://hu.wikipedia.org/wiki/%C3%96sszetett_sz%C3%A1mok" class="external" wx:linktype="interwiki" wx:pagename="hu:Összetett_számok" id="wx40">Magyar</a> | <a href="http://nl.wikipedia.org/wiki/Samengesteld_getal" class="external" wx:linktype="interwiki" wx:pagename="nl:Samengesteld_getal" id="wx41">Nederlands</a> | <a href="http://ja.wikipedia.org/wiki/%E5%90%88%E6%88%90%E6%95%B0" class="external" wx:linktype="interwiki" wx:pagename="ja:合成数" id="wx42">日本語</a> | <a href="http://pl.wikipedia.org/wiki/Liczby_z%C5%82o%C5%BCone" class="external" wx:linktype="interwiki" wx:pagename="pl:Liczby_złożone" id="wx43">Polski</a> | <a href="http://ro.wikipedia.org/wiki/Num%C4%83r_compus" class="external" wx:linktype="interwiki" wx:pagename="ro:Număr_compus" id="wx44">Română</a> | <a href="http://ru.wikipedia.org/wiki/%D0%A1%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D0%BD%D0%BE%D0%B5_%D1%87%D0%B8%D1%81%D0%BB%D0%BE" class="external" wx:linktype="interwiki" wx:pagename="ru:Составное_число" id="wx45">Русский</a> | <a href="http://simple.wikipedia.org/wiki/Composite_number" class="external" wx:linktype="interwiki" wx:pagename="simple:Composite_number" id="wx46">Simple English</a> | <a href="http://sk.wikipedia.org/wiki/Zlo%C5%BEen%C3%A9_%C4%8D%C3%ADslo" class="external" wx:linktype="interwiki" wx:pagename="sk:Zložené_číslo" id="wx47">Slovenčina</a> | <a href="http://sl.wikipedia.org/wiki/Sestavljeno_%C5%A1tevilo" class="external" wx:linktype="interwiki" wx:pagename="sl:Sestavljeno_število" id="wx48">Slovenščina</a> | <a href="http://fi.wikipedia.org/wiki/Yhdistetty_luku" class="external" wx:linktype="interwiki" wx:pagename="fi:Yhdistetty_luku" id="wx49">Suomi</a> | <a href="http://th.wikipedia.org/wiki/%E0%B8%88%E0%B8%B3%E0%B8%99%E0%B8%A7%E0%B8%99%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%81%E0%B8%AD%E0%B8%9A" class="external" wx:linktype="interwiki" wx:pagename="th:จำนวนประกอบ" id="wx50">ไทย</a> | <a href="http://vi.wikipedia.org/wiki/H%E1%BB%A3p_s%E1%BB%91" class="external" wx:linktype="interwiki" wx:pagename="vi:Hợp_số" id="wx51">Tiếng Việt</a> | <a href="http://tr.wikipedia.org/wiki/Bile%C5%9Fik_say%C4%B1" class="external" wx:linktype="interwiki" wx:pagename="tr:Bileşik_sayı" id="wx52">Türkçe</a> | <a href="http://ur.wikipedia.org/wiki/%D9%85%D8%B1%DA%A9%D8%A8_%D8%B9%D8%AF%D8%AF" class="external" wx:linktype="interwiki" wx:pagename="ur:مرکب_عدد" id="wx53">اردو</a> | <a href="http://yi.wikipedia.org/wiki/%D7%A6%D7%95%D7%96%D7%90%D7%9E%D7%A2%D7%A0%D7%92%D7%A2%D7%96%D7%A2%D7%A6%D7%98%D7%A2_%D7%A6%D7%90%D7%9C" class="external" wx:linktype="interwiki" wx:pagename="yi:צוזאמענגעזעצטע_צאל" id="wx54">ייִדיש</a> | <a href="http://zh.wikipedia.org/wiki/%E5%90%88%E6%95%B0" class="external" wx:linktype="interwiki" wx:pagename="zh:合数" id="wx55">中文</a></div>
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