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Greatest Common Factor (GCF) Calculator

Enter positive integer numbers 54 24 36

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Greatest common factor (GCF)

Least common multiple (LCM)

LCM calculation

LCM calculator ►

GCF example

Find GCF for numbers 8 and 12:

The prime factors of 8 are:

8 = 2×2×2

The prime factors of 12 are:

12 = 2×2×3

So the common prime factors of 8 and 12 are:

gcf(8,12) = 2×2 = 4

So 8/12 fraction, can be reduced to 2/3:

8 / 12 = (8/4) / (12/4) = 2 / 3

 

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See also

• Least common multiple (lcm) calculator
• Fractions calculator
• Fraction simplifier

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