Here we will show you how to calculate the factorial of 121 (aka 121 factorial) and give you the approximate scientific notation answer and the exact answer.
Before we begin, note that the factorial of 121 can be written as 121 followed by an exclamation mark like this: 121!
Factorial of 121 means that you multiply 121 by every number below it. Therefore, you calculate the factorial of 121 by multiplying 121 by 120, then by 119, and so on all the way down to 1. In other words, we calculate 121 × 120 × 119 × ... × 1 to get 121 factorial.
The answer to 121 factorial (121!) contains 201 digits and we have listed the exact entire answer at the bottom of this page. However, below is the approximate scientific notation answer to 121 factorial:
8.0942985252 × 10200
The answer above is also sometimes written as 8.0942985252e+200. Regardless, it means that the approximate answer to 121! is 80942985252 followed by 190 more digits.
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Like we promised, below is the exact answer to 121 factorial (121!) with all 201 digits:
809429852527344373968162284544935082997082306309701607045776233628497660426640521713391773997910182738287074185078904956856663439318382745047716214841147650721760223072092160000000000000000000000000000
What is the factorial of 122?
The factorial of 121 is not the only problem we can solve. Go here for the next number on our list that we have calculated the factorial of!
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