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Factorial Calculator

Calculate the factorial of any number from 0 to 20 with step-by-step breakdown.

Enter a Number (0–20)

Maximum: 20 (to keep numbers manageable)

About Factorial Calculator

Factorial Calculator computes the factorial of any non-negative integer, displaying the full result even for large numbers. It also shows the step-by-step multiplication chain. Widely used in combinatorics, probability, and algebra coursework.

  • Computes n! for any non-negative integer
  • Displays full expanded multiplication
  • Handles very large number results
  • Instant computation