Combination Calculator (nCr)
Calculate combinations C(n,r) - the number of ways to choose r items from n items where order does not matter.
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Combination Formula
C(n, r) = n! / (r! * (n - r)!) where n is total items and r is items chosen. Order does not matter in combinations.
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Disclaimer: This tool is provided as-is for informational and educational purposes only.