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0! = 1

May 2, 2013May 3, 2013 loganj tidbits

0! = 1 (zero factorial equals one)

.
.
.
5! = 5x4x3x2x1 = 120
4! = 4x3x2x1 = 24
3! = 3x2x1 = 6
2! = 2×1 = 2
1! = 1
0! = 1

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