Greatest Common Factor Calculator - Multi-Tools

Greatest Common Factor Calculator

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Greatest Common Factor Calculator

Find the largest number that divides two or more numbers without leaving a remainder. Also known as Greatest Common Divisor (GCD).

Enter at least two numbers separated by commas

Result

GCF Methods
MethodDescriptionBest For
Euclidean AlgorithmRepeatedly divide larger number by smaller number until remainder is 0Large numbers
Prime FactorizationBreak numbers into prime factors and multiply common factorsSmall numbers, educational purposes
Common Applications:
  • Simplifying fractions
  • Finding common denominators
  • Solving ratio problems
  • Cryptography and number theory
  • Computer algorithms and data structures
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