Solutions by everydaycalculation.com

The GCF of 10 and 7 is 1.

- Find the prime factorization of 10

10 = 2 × 5 - Find the prime factorization of 7

7 = 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 1

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Find hcf of: 20 & 14 30 & 21 50 & 35 70 & 49 20 & 7 10 & 14 30 & 7 10 & 21 50 & 7 10 & 35 70 & 7 10 & 49

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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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