Permutations without repetition

Find out how many different ways you can choose k items from n items set. With/without repetition, with/without order.

(n)
(k)

Calculation:

P(n)=n!  n=11 P(11)=11!=39916800P(n) = n! \ \\ \ \\ n = 11 \ \\ P( 11) = 11! = 39916800

Number of permutations: 39916800

39916800