Online Combination and Permutation calculator
This is an online combination and permutation calculator. The calculator receives two parameters. The first one is 'n' which indicates 'total number of objects and the second one is 'r' which indicates 'number of objects selected'. The answer will be shown below.
Combination nCr = n!/r!(n-r)!
Permutation nPr = n!/(n-r)!
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