【集中力】大幅アップの勉強タイマー

【超簡単】2022の階乗の求め方

今回は2022の階乗と計算方法を説明していきます。

2022の階乗は1577770521955741775425616826016568109377381430369462799827343666091860680305863462233401975335092471249763769106060560361883415560654875358797313112937186441706706528571886331190641156628223315362816042924467088184210999584883604205290864676686683863424842238639541773807915434318203388820235471345110921959375106390793512190028064992250140673154750829760149252582543161790916480903313046064772871828262791071350210087686282082585527843697263008984897974197341144619662514246773991409491374822113822576689493347729948485781164544063731009415364731395215221872410538326928461152462346319902715697625491698292364773411078824580189133903952130326936161639096921784196546071710978636014709406760940636069731930144534506052655645186473642868914298746179672653134101389894607587970221871162924254728592486909234896394860687545083160155290584892127910023198316286561608280403291420216983791705807530467390766458368658105015319141641450094215803950180987846799906690443120879716974369531116586500593774037284890143152601414089218699834723131418996121642191484325749431259590863110624386217106347320453815724252105924395877840382191145787901511262604241374850373705413097309913361645688968085026896432585992624510999471221665769807565042237692509001512483203926643206188725556411411713871446811504857290623092168592087511593639453737644519634543677414947492841251983363253181663407427426931406391874743900828985790130995105303680525866403722655803242420812557025872405155068534230079818995762876999690713199325767275127734984433109126906426371535225161631550191464309828393798508882286152065194470702982986813466076560686038195670840198423863470998154606070020856457870340061895300528394215115117713251459191507005012497965807112015112575141899575040066073735914115375855210844994297771799810494904459405135422160241541290735483271997630422683046580138061047407052166853636597576174179133075285134550304381780974350955097397676562760785226681923727509419112712866920985347639374972087899520360251471854395445525018119780997132566841677135818697382302499286377093618622545306739623166150328254359010441085149829930811366847182953452300022089671194309107407789745346499406359928751100896498556442647736022484665167480428572190646797749037009916098013930821551459971957362853013450696888701973168447667506976866707941674489043549096042176505753233959156559274966992803779436280338703359709797388446062601069451667013245624608360052743447182623322259496278756670548369917843289576880609954558689845798123759667724137294560177129012235129166239018354043394158442090857495278705962454511761511068273639436749125609380230516942922570645615634576807986161449969878656536500405329926714696055255650938333208907022162884854537147817406460742414085774623791976845801721053767404925347393529660704091676553394506622158531502309247042851070576117682870149816170994976351987162540994765427033889614200192755050641606371005719880483971773925131700797466221675790778219904320686056171479094048561794488835551074480439460512134661494118292833007918114063209748748048675220928903117277967588911173347572386252264179597353655725755741509887863010325190701387784620091189537363396968466143630023503759980060154483098527037183213635885164305211756224191157140856977654232689528909665319583154791160469628736090085161767636791720797257648837917753216180961400269292244272824840071312124489796232244765448855050540018928995474520503791177074193595340617041786122036055904910365667137333942339482865965776547600097784425879875523801009330621593267532118905173341597997693211823917474576133795925805771495715700513633168446982520440998438766718623872733235099631651317703159995527221581093750673853583938344386079441737649648933400459187294689281972646620473537557668705687680070981029318833114507057445625682983953263110087817182884412111800324905459120007609485762515511989392997942508864215990081948178460816162777966955226255192066513249229862588109578875244830349853510300244787427842672490819045735177846607691447787181878301704167455858563769823337207344305318267752368607508522420248975149176189793196617745498571042178809115021598816214759935658878517166411708752132253660801736807850582013435240021021690365256572492924249321940871370736336769309420320992265688428848160218930820117710301475388351217103966709512228980440547028311690663426873242967991831008541290872109082177232003772545954891795202499796690159322201192856629652892094477309547595216316526319215349337537122302797010537856807900952572502867672596689388288904591274274829934877780081670141128503758362059002336506033321737761032772847504087643838291074469118045630358319528833451890448799055657583072059675401386064258175979079224242606910987744726931601571020061837005388681066841441109121552246766058636186497407278480709651761233047740539403387824523665174095380237867352674076468881406912632656619913374139974411806065222152585491337281070770434270205182367739455691213171862296522236158138317269836536431338416989197868200242372041956854074536460144283270924350329970010755926352450823387142757235959649955588815642304005197757328963113653025198782483948512455000790947945261578289540129822386638707132466990772398545897523043082776673984561920358092727054663878993272463202968940891940459546781239168945691672533592467139090325942630814497455534768688359014400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000になります。

この計算方法について紹介します。

目次

階乗とは何か?

最初に、階乗とは何かを理解していきましょう。

階乗は、ある自然数nに対して、1からnまでの全ての数を掛け合わせたもののことです。

つまり、nの階乗は、$n!=n(n-1)(n-2)…3\times2\times1$です。

※参考記事
[数A]階乗|階乗とは、0の階乗が1になる理由も解説

2022の階乗

ここから、本題に入りましょう。
nの階乗の式に2022を代入して計算します。

$$n!=n(n-1)(n-2)…3\times2\times1$$

ここで$n=2022$とすると、下記のように計算できます。

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掛け算のみで解けるので簡単に解くことがですね。

nの値が大きい時は迷わず電卓やエクセルを使いましょう!

まとめ

ここまで読んでいただきありがとうございます。

2022の階乗を計算してきました。

nの階乗は、$n!=n(n-1)(n-2)…3\times2\times1$なので、nに代入すれば掛け算だけでも解けますね!

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