Permutation & Combination Calculator
nPr and nCr, exact for large values.
Inputs
- n
- r
How it is calculated
nPr = n! ÷ (n−r)! nCr = n! ÷ (r!(n−r)!). Computed with BigInt.
nPr and nCr, exact for large values.
nPr = n! ÷ (n−r)! nCr = n! ÷ (r!(n−r)!). Computed with BigInt.