Solutions by everydaycalculation.com

The GCF of 4 and 2 is 2.

- Find the prime factorization of 4

4 = 2 × 2 - Find the prime factorization of 2

2 = 2 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2

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Find hcf of: 8 & 4 2 & 1 12 & 6 20 & 10 28 & 14 8 & 2 4 & 4 12 & 2 4 & 6 20 & 2 4 & 10 28 & 2 4 & 14

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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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