Permutation & Combination Calculator

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Calculate permutations (nPr) and combinations (nCr) for given n and r, with factorial safety limits.

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Calculated locally in your browser. No data is sent to any server.

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update v1.0

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Enter n and r to compute nPr and nCr.

Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.