Here we will show you how to calculate the factorial of 680 (aka 680 factorial) and give you the approximate scientific notation answer and the exact answer.
Before we begin, note that the factorial of 680 can be written as 680 followed by an exclamation mark like this: 680!
Factorial of 680 means that you multiply 680 by every number below it. Therefore, you calculate the factorial of 680 by multiplying 680 by 679, then by 678, and so on all the way down to 1. In other words, we calculate 680 × 679 × 678 × ... × 1 to get 680 factorial.
The answer to 680 factorial (680!) contains 1633 digits and we have listed the exact entire answer at the bottom of this page. However, below is the approximate scientific notation answer to 680 factorial:
3.9921840844 × 101632
The answer above is also sometimes written as 3.9921840844e+1632. Regardless, it means that the approximate answer to 680! is 39921840844 followed by 1622 more digits.
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Like we promised, below is the exact answer to 680 factorial (680!) with all 1633 digits:
3992184084435540885338321220199043431467884525256873634018854581128661466509213967895711819416915365225631326327899748395185242682468757299564763493576528420126343534752130111147273981116994923031362161719270469473409161907679975594543411762278843003357451951852226630569053924591783696973958810494936005197104795796343562632483558477241115374794951253447117472497476497615308660617912667703129874277536953639617580036436139603757506438340813566935384829203405868366160612366454906297367398442765200962613682496450499214591497375524637073120285813947925180449927642668197019664704816881363423813225096889187560581953205145051589597932824634117529544542084366388322708902088791567504583449622264244920266703371822346034969282338102797502509224510751098629053713554393149396978302167000447237261695328821322933630327744663202000350726451473217489016396513752062103339436457474673525827624129555792698982160879264657140109673874733368195672580268458223408592012595445631502834692943039388400094118351874632661707862104169034012500990429317210899085232704804626531343084432432198763604176592454436063900012237096845267816478623574662080087277113155646682468464375118913781642184640239451080634972208578603317630419280709243617724996673135954063100260702107093837577056581317528612114940813791647674088319171332069718943805283295309483902059673856042587192422630337627100007393911028517548675231278906780564478001076534023264767232559914185486509201359029737042151997440000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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