What does ! means ?

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What does ! means ?

E.g. 3! = ?

jeromechoy0220 Oct 2, 2016

edited by jeromechoy0220 Oct 2, 2016

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3! means 3*2*1 = 6

8! means 8*7*6*5*4*3*2*1

etc

3! is 3 said as factorial

Melody Oct 2, 2016

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