Enter n

Enter r

  

How does the Permutations and Combinations Calculator work?
Free Permutations and Combinations Calculator - Calculates the following:
Number of permutation(s) of n items arranged in r ways = nPr
Number of combination(s) of n items arranged in r unique ways = nCr including subsets of sets
This calculator has 2 inputs.
Common Core State Standards In This Lesson
HSS.CP.B.9
What 2 formulas are used for the Permutations and Combinations Calculator?
nPr=n!/r!
nCr=n!/r!(n-r)!
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Related Calculators
What 4 concepts are covered in the Permutations and Combinations Calculator?
combinations
factorial
The product of an integer and all the integers below it
multiplication
math operation involving the product of elements
permutations
Example calculations for the Permutations and Combinations Calculator



Permutations and Combinations Calculator Video

Permutations and Combinations Calculator Video