Combination Calculator (nCr)
Calculate number of unordered selections (combinations) of r items chosen from n total items.
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7
115
3
07
Combinatorics Result
Combinations nCr (Order Ignored)
35
Permutations nPr (Order Matters)
210
Factorial n!
5040
Factorial r!
6
Formula & Calculation Methodology
nCr = n! / [r! x (n - r)!]
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