# COVID-19 Vaccination FAQs

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How to calculate the factorial of 100
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100! is exactly: 93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000
The aproximate value of 100! is 9.3326215443944E+157.
The number of trailing zeros in 100! is 24.
The number of digits in 100 factorial is 158.
The factorial of 100 is calculated, through its definition, this way:
100! = 100 • 99 • 98 • 97 • 96 ... 3 • 2 • 1
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