# Combinatorial Coefficient Calculator

Instructions: You can use this combinatorial coefficient calculator to compute “n choose k”, or $$C_{n,k}$$, for two given integers $$n$$ and $$k$$.

Type the integer $$n$$:
Type the integer $$k$$:

## More about this Combinatorial Coefficient calculator for $$n$$ and $$k$$:

There are many Math contexts in which the use of combinatorial coefficients is relevant, especially in the calculation of probabilities using distribution probabilities or counting methods. Indeed the combinatorial coefficient $$C_{n,k}$$ is used, for example, by the Binomial Distribution.

The formula for $$C_{n,k}$$ is:

$C_{n,k} = \frac{n!}{k! \times (n-k)!}$