Solutions by everydaycalculation.com

The GCF of 30 and 22 is 2.

- Find the prime factorization of 30

30 = 2 × 3 × 5 - Find the prime factorization of 22

22 = 2 × 11 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2

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Find hcf of: 60 & 44 15 & 11 90 & 66 150 & 110 210 & 154 60 & 22 30 & 44 90 & 22 30 & 66 150 & 22 30 & 110 210 & 22 30 & 154

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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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