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Subjects>Math>Basic Math

What is the greatest common factor of 12 15 and 18?

Updated: 4/28/2022

Wiki User

∙ 7y ago

Best Answer

The GCF of 12, 15, and 18 is 3.

The prime factorization of these numbers are as follows:

18 = 2 x 3 x 3

15 = 3 x 5

12 = 2 x 2 x 3

The only factor that appears in all three prime factorization is 3, so 3 is the greatest common factor.

Wiki User

∙ 7y ago

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More answers

Wiki User

∙ 8y ago

The GCF is 3.

Wiki User

∙ 8y ago

GCF(12, 18, 15) = 3.

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