factorial [fak- tawr-ee- uh l, - tohr-] EXAMPLES | WORD ORIGIN noun . Mathematics the product of a given positive integer multiplied by all lesser positive integers: The quantity four factorial (4!) = 4 ⋅ 3 ⋅ 2 ⋅ 1 = 24. : Symbol n!, where n is the given integer. adjective . Mathematics of or relating to factors or factorials. of or relating to a factor or a factory. Origin of factorial
First recorded in
-ial Related forms fac·to·ri·al·ly, adverb
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for factorial Historical Examples of factorial
The possible connections within it were
factorial one hundred thousand.
It is by no means unlikely that various dark forms of lubricipeda correspond with a progressive series of
These phenomena demonstrate the existence of a complex interrelation between the
In its place stands the
factorial hypothesis, evolved by workers in America, England, and France at about the same time. British Dictionary definitions for factorial noun the product of all the positive integers from one up to and including a given integer. Factorial zero is assigned the value of one: factorial four is 1 × 2 × 3 × 4 . Symbol: n !, where n is the given integer adjective of or involving factorials or factors Derived Forms factorially, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for factorial
1816 (n.), 1837 (adj.), from
factor + -al (2).
Online Etymology Dictionary, © 2010 Douglas Harper
The product of all of the positive integers from 1 to a given positive integer. It is written as the given integer followed by an exclamation point. For example, the factorial of 4 (written 4!) is 1 X 2 X 3 X 4, or 24.
The American Heritage® Science Dictionary
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