Meaning of !

relating to a factor or factorial.
the product of an integer and all the integers below it; e.g., factorial four ( 4! ) is equal to 24.

fac·to·ri·al

făk-tôr′ē-əl

factorial

 (făk-tÃ' r'ē-əl)
n.
The product of all positive integers from 1 to a given number: 4 factorial, usually written 4!, equals 24 (1 Ã- 2 Ã- 3 Ã- 4=24).
adj.
Of or pertaining to a factor or factorial.

factorial

fækˈtɔːrɪəl

factorial

( fÃÂ|kà <Ë † tà ⠀ â € œrà ‰ ªÃ⠀ ¢ l ) maths
n
(Mathematics) the product of all positive integers from one to and including a given integer. A factorial zero is assigned the value of one: factorial four is 1 Ã⠀ "2 Ã⠀" 3 Ã⠀ "4 . Symbol: n !, where n is the given integer
adj
(Mathematics) of or involving factors or factors
facà <Ë † torially adv

fac•to•ri•al

(fækˈtɔr i əl, -ˈtoʊr-)

fac • to • ri • al

(fÃ|ktɔr i əl, -toʊr-)

n.
1. the product of a given positive integer multiplied by all minor positive integers: The factorial quantity (4!)=4 ∙ 3 ∙ 2 ∙ 1=24. Symbol: n!, where n is the given integer.
adj.
2. of or related factors or factorials.
3. of or related to a factor or a factory.
[1810-20]
fac • to'ri • al • ly, adv.

fac·to·ri·al

făk-tôr′ē-əl

facÂtoÂriÂal

(făk-tÃ'r'ē-əl)
The product of all positive integers from 1 to a given positive integer. It is written as the given integer followed by an exclamation mark. For example, the factorial of 4 (written 4!) Is 1 × 2 × 3 × 4 or 24.