What is the factorial of 1004? (1004!) 1004 Factorial

What is the factorial of 1004?

Here we will show you how to calculate the factorial of 1004 (aka 1004 factorial) and give you the approximate scientific notation answer and the exact answer.

Before we begin, note that the factorial of 1004 can be written as 1004 followed by an exclamation mark like this: 1004!

Factorial of 1004 means that you multiply 1004 by every number below it. Therefore, you calculate the factorial of 1004 by multiplying 1004 by 1003, then by 1002, and so on all the way down to 1. In other words, we calculate 1004 × 1003 × 1002 × ... × 1 to get 1004 factorial.

The answer to 1004 factorial (1004!) contains 2580 digits and we have listed the exact entire answer at the bottom of this page. However, below is the approximate scientific notation answer to 1004 factorial:

4.0642523636 × 10²⁵⁷⁹

The answer above is also sometimes written as 4.0642523636e+2579. Regardless, it means that the approximate answer to 1004! is 40642523636 followed by 2569 more digits.

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Like we promised, below is the exact answer to 1004 factorial (1004!) with all 2580 digits:

406425236360987707657752415597591885280420172599077361158165720902149664717793407042703498215555628129810311035111475157584571287055815117482201964780505740377391879040750937551386789010664224875504648862663519409335648511912973969910619632674217287933475263903373503430380814579670558023145152731844085973016543232391428164414723968898218784606407874365567614992979065057722582232165614288873790711440920225956456363634029358871085185503184581865029688197985254325357177603511840017446428568863807147042026220822072652275075787101564399143718124982227727142019856749414875011065269543596726765434146538339150213208654906393253876633771473269659727275810205572013203741183415285179867193619256062876305191028600884961035645865059863752624811639044030125645857135778606876586964410109158104347809210770451776216252587246257264045410295613984174221780283249921501123873179060671923657141544127041049888353770982192343166635651125282615787302045333818976538694829503348038979536274504359276523495717792171763557202725015784646698210119203528059353979873084656785688259696383461937816593781040298862538516051854785149740261940670876243559705298774263110187015715763269063674024481884451586177930075997618844528375056086735565244592211594163829895329072310139677528604694505607621792892740389917286968836584704415122902351056472801759284364061123408849239641679683710043599995200299636640857143698609375749177570902647516751550405570246115977474716023200824084285163875731972786381513287654461612781223868417274160378803357741468894864872021505021436877053097333513590741396211421132596575046427540576996918786041743060983722890237948183642938111636475048716232690313967813860201611570400144014787771111315751100806613440677770742867724932013121702273660474866709130546101496496048917531622093131901602738724094654927849031508861435437314947568589315717119431589399258687934961296633188837600633968144647457091870384117115153573480450966569826074276129981613214965786490567499561887009863496865952415080766874902851298959886809320796189364452623903615927041406335922557424746150339633493840161515866008304624703333967167004818390957438479368392847451932490598583327801052934311502470532526469178293522949637438160258541472305212345087808482515055700134657753686202270515762525373142366697828409931225222811578433914753076342759859683328000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

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