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Word: factorial (lookup usage) (lookup stats)


Meaning:

Noun:

  • combinatorics The result of multiplying a given number of consecutive integers from 1 to the given number. In equations, it is symbolized by an exclamation mark (!). For example, 5! = 1 * 2 * 3 * 4 * 5 = 120.

Source: Wiktionary | Src Info »