Greatest Common Factor (GCF) Calculator

Find the greatest common factor of two or more numbers instantly.

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Understanding Greatest Common Factor (GCF)

The greatest common factor (GCF) is the largest positive number that divides evenly into two or more numbers. It's essential in mathematics for simplifying fractions and solving various algebraic problems.

How to Find GCF

  1. List all factors of each number
  2. Identify the factors common to all numbers
  3. Select the largest common factor