Factorial Calculator
n!, n!/m!, algebraic factorial simplification
Input
n (max 20)
m (for division)
Quick Reference
0!
1
1!
1
2!
2
3!
6
4!
24
5!
120
6!
720
7!
5,040
8!
40,320
9!
362,880
10!
3,628,800
12!
479,001,600
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