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