Factorial Calculator
Calculates the factorial of a whole number.
Lilu Baba's Factorial Calculator computes n! — the product of all positive integers up to n — instantly.
How to use this calculator
- Enter a whole number.
- Its factorial (n!) updates instantly.
n!
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FAQ
Factorial Calculator — frequently asked questions
By mathematical convention, 0! equals 1.
Factorials grow extremely fast — 171! already exceeds the maximum number JavaScript can represent precisely.