Greatest Common Factor Calculator

Greatest Common Factor Calculator

You can easily calculate the greatest common factor (GCF) with the help of this online calculator as the greatest common divisor (GCD).

[Math_m_Greatest_Common_Factor_Calculator]

GCF example

If you need to calculate the GCF for the numbers 18 and 27:

The divisors of 18 are:

18 = 3×3×2

The divisors of 27 are:

27 = 3×3×3

So the common divisors of 18 and 27 are:

gcf = 3×3 = 9

So 18/27 fraction, can be reduced to 2/3:

18/27 = 2/3

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