On the left side enter the values for the Number of Objects n and the Sample Size r. Find the number of ways of choosing r unordered outcomes from n possibilities as nCr or nCk. Find a pair from the given array with maximum nCr value.
The combination calculator will return the value of n choose r.
N C r n. C Program for efficiently print all prime factors of a given number. Combinations calculator or binomial coefficient calcator and combinations formula. NCr 5x4x3x2x1 1x2x3x1x2 nCr 20 2 nCr 10.