Combinatorics Calculator

Calculate permutations (nPr), combinations (nCr), factorials, and multinomial coefficients online. Supports large numbers — free combinatorics tool for math students

Parameters

Multinomial values (comma-separated)

Results

n! = 10!

3628800

r! = 3!

nPr = P(10,3) = n!/(n-r)!

720

nCr = C(10,3) = n!/(r!(n-r)!)

120

Multinomial (10! / (2! × 3! × 5!))

2520