What is the factorial of 1261? (1261!) 1261 Factorial

What is the factorial of 1261?

Here we will show you how to calculate the factorial of 1261 (aka 1261 factorial) and give you the approximate scientific notation answer and the exact answer.

Before we begin, note that the factorial of 1261 can be written as 1261 followed by an exclamation mark like this: 1261!

Factorial of 1261 means that you multiply 1261 by every number below it. Therefore, you calculate the factorial of 1261 by multiplying 1261 by 1260, then by 1259, and so on all the way down to 1. In other words, we calculate 1261 × 1260 × 1259 × ... × 1 to get 1261 factorial.

The answer to 1261 factorial (1261!) contains 3365 digits and we have listed the exact entire answer at the bottom of this page. However, below is the approximate scientific notation answer to 1261 factorial:

2.0223609298 × 10³³⁶⁴

The answer above is also sometimes written as 2.0223609298e+3364. Regardless, it means that the approximate answer to 1261! is 20223609298 followed by 3354 more digits.

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Like we promised, below is the exact answer to 1261 factorial (1261!) with all 3365 digits:

20223609298883567010890294293880341616674277260567169071506034295299205033888089019327055318868970505403674083610133757424567920224888401255389151257700291613060286441262395520580366058129433713202343239838722386665111620079908685763050982768389930403712038910417186788028123318886199937338737062776198061456166972118353116701446368287092310904241544087759848243650990698488286678475651329925321824587102189306223229007579689017186905209255082153784310598040139572073248530783945972206476095008246026572563678226344702912361899259282567486999662648131345890495146738984022316006706777871066446624305326031887577838457545122658343266284698152998114288687388539906569612686084730441187914231637353735045639072892289250762060450670564812731140292447970001810301862327019429571614765085412680150212277405372902084167334365386703149204717777908081148273431593195000972589955084016418831063319647261103927866950759966515983064497320160656156556437203068649488378445757601646947539141963468850097854621284183361905641994690532221110290209572931122172554830511340205908982724433794605860724697685938123470298500072140365730685323924358850488606565203087103643084921698976911520691121013746326436925076424518675373590396111011001636206026467611695858167619976769005237888909120424802727326644241417124867696894054736408710207595658472475347635286035717130035437263113456496769971883370698152103454473919620303382145623112356160927552471583992075851390432417934773298629211543390878333931474208945524107411511292135308233622467967301480453552297892379841583491829028096631307343091213131604970380431474078360928807443770075025515797056654925180539388485093680459507176068820917699627538823130594128144707156298170322607881757617195049707423954737967814193462701539027294246244943956162938763265616110564483676127145011188561519693068088332013917652729774273525085793532479548008356174475615838351061216588482274931446577700443351313271677507605515680113262546181469129024082383379214536109211079462890940748304333593228861814830956054884773294279491489334564796642597442188982879739231202630511908555307656098256142830902960639327119236545180241614328402072344052578809977304831910376586056591999187663174613563858986966169878713231016077291951438798044174376020112225671183946184379372544255378660032550873811857596413377997750118590436961624703327468366868893350254527014479349084390155923045327077731663809415046716591714472399592150484688808535950179723332883241279770803385344863290411058611125688465965857864202027471249028365428487371334291622550441548970220969743907576082266502462356339331477956519756613245802383600428424993799649978496250085738372988270996854806923121513868328350519980254769020618595847509602080594087135705109814051694206011925137279439749682274003947839233033477859990637108070358583938305609732808814072183103174012420639517797444589329906987662276847726665627826851215839457725784183490783477497400485877775386865054346931563050716092397818274816573963233256749398469363576146710312644940378943565099499915576823847511897250201600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

What is the factorial of 1262?
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