Solutions by everydaycalculation.com

The GCF of 12 and 13 is 1.

- Find the prime factorization of 12

12 = 2 × 2 × 3 - Find the prime factorization of 13

13 = 13 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 1

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Find hcf of: 24 & 26 36 & 39 60 & 65 84 & 91 24 & 13 12 & 26 36 & 13 12 & 39 60 & 13 12 & 65 84 & 13 12 & 91

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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).

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