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Combinations & Permutations Calculator — Exact nCr, nPr & Factorial

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Calculated result

C(10, 3) = 120

Permutations P(10, 3) = 720

10! = 3628800

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  1. 1. Combination ignores order: n! ÷ (r!(n-r)!) = 120.
  2. 2. Permutation keeps order: n! ÷ (n-r)! = 720.

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