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Permutation & Combination

Calculate permutations (nPr), combinations (nCr), and factorials.

Math v1.0.0 Free 434 uses
Permutations & Combinations
Permutation (nPr)
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Combination (nCr)
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Factorial Calculator
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Pascal's Triangle (Rows 0-10)

About This Tool

This Permutation and Combination Calculator computes permutations (nPr), combinations (nCr), and factorials for any given values with clear step-by-step solutions. It is designed for math students, statisticians, and probability enthusiasts who need to solve combinatorics problems quickly and accurately. Enter your values and get instant results along with the formulas used in the calculation.

How to Use

  1. 1 Select the calculation type: permutation (nPr), combination (nCr), or factorial
  2. 2 Enter the values of n and r (or just n for factorials)
  3. 3 Click calculate to compute the result
  4. 4 View the answer along with the step-by-step formula breakdown
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