Definition of FACTORIAL

Examples of factorial in a Sentence

Recent Examples on the Web: Noun The exclamation point there isn’t the end of a sentence but, instead, denotes a factorial, the value obtained by multiplying the number by every number that precedes it. — Philip Bump, Washington Post, "The breathtaking scale of Santa Claus’s task on Christmas Eve," 20 Dec. 2019 But for graphs with n nodes, the number of different matchings is n factorial (1 * 2 * 3 * … * n), which is so much larger than n that this brute-force approach is hopelessly impractical for all but the smallest graphs. — Quanta Magazine, "Landmark Algorithm Breaks 30-Year Impasse," 14 Dec. 2015 Here’s one easy way to construct a list of, say, 100 composite numbers in a row: Start with the numbers 2, 3, 4, … , 101, and add to each of these the number 101 factorial (the product of the first 101 numbers, written 101!). — Quanta Magazine, "Prime Gap Grows After Decades-Long Lull," 10 Dec. 2014

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