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Permutations and combinations

Enter n and r to see both results.

Result
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C(5, 2) = 10 and P(5, 2) = 20.

Example

Learn and compute permutations and combinations side by side.

C(5, 2) = 10 and P(5, 2) = 20.

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Methodology

Permutations count ordered arrangements; combinations count unordered selections.

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