Solutions by everydaycalculation.com

The GCF of 7 and 30 is 1.

- Find the prime factorization of 7

7 = 7 - Find the prime factorization of 30

30 = 2 × 3 × 5 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 1

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Find hcf of: 14 & 60 21 & 90 35 & 150 49 & 210 14 & 30 7 & 60 21 & 30 7 & 90 35 & 30 7 & 150 49 & 30 7 & 210

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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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