What is FACT?
Returns the factorial of a number. N! = N × (N-1) × (N-2) × ... × 1.
Syntax
=FACT(number)
Example
Formula: =FACT(5)
Result: 120
How It Works
5! = 5×4×3×2×1 = 120. Factorials grow extremely fast. Used in permutations, combinations, and probability.