Dictionary
Thesaurus
Reference
Translate
Web
factorials - 3 dictionary results

fac⋅to⋅ri⋅al

[fak-tawr-ee-uhl, -tohr-]
–noun
1. 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
2. Mathematics. of or pertaining to factors or factorials.
3. of or pertaining to a factor or a factory.

Origin:
1810–20; factor + -ial


fac⋅to⋅ri⋅al⋅ly, adverb
fac·to·ri·al   (fāk-tôr'ē-əl, -tōr'-)   
n.  The product of all the positive integers from 1 to a given number: 4 factorial, usually written 4!, is equal to 24 (1 × 2 × 3 × 4 = 24).
adj.  Of or relating to a factor or factorial.
factorial   (fāk-tôr'ē-əl)  Pronunciation Key 
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 × 2 × 3 × 4, or 24.
Search another word or see factorials on Thesaurus | Reference