GCF Calculator

Find the greatest common factor of two or more whole numbers. Enter numbers separated by commas, spaces, or new lines.

Numbers

Use this GCF Calculator to find the greatest common factor of two or more whole numbers. The GCF is the largest positive integer that divides every entered number without a remainder.

Calculation Method

One method is to compare the prime factors of each number and multiply the factors they have in common.

Example

Find the GCF of 24 and 36.

24 = 2³ × 3

36 = 2² × 3²

The common prime factors with the lowest powers are:

2² × 3 = 12

Therefore, GCF(24, 36) = 12.

Source

OpenStax Prealgebra 2e — Greatest Common Factor

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