n choose k calculator
Find out how many different ways you can choose
k items from
n items set without repetition and without order. This number is also called combination number or n choose k or binomial coefficient or simply combinations. See also general
combinatorial calculator.
Calculation:
Ck(n)=(kn)=k!(n−k)!n! n=10 k=4 C4(10)=(410)=4!(10−4)!10!=4⋅3⋅2⋅110⋅9⋅8⋅7=210
Number of combinations: 210