javascript-algorithms/src/algorithms/math/factorial

Factorial

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In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example:

5! = 5 * 4 * 3 * 2 * 1 = 120

n	n!
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
11	39 916 800
12	479 001 600
13	6 227 020 800
14	87 178 291 200
15	1 307 674 368 000

References

Wikipedia