factorial

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fac·to·ri·al

(fak-tōr'ē-ăl),
1. Pertaining to a statistical factor or factors.
2. Of an integer, that integer multiplied by each smaller integer in succession down to one, written n!; for example, 5! equals 5 × 4 × 3 × 2 × 1 = 120.

fac·to·ri·al

(fak-tōr'ē-ăl)
Pertaining to a statistical factor or factors.