Solutions by everydaycalculation.com

The GCF of 7 and 51 is 1.

- Find the prime factorization of 7

7 = 7 - Find the prime factorization of 51

51 = 3 × 17 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 1

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Find hcf of: 14 & 102 21 & 153 35 & 255 49 & 357 14 & 51 7 & 102 21 & 51 7 & 153 35 & 51 7 & 255 49 & 51 7 & 357

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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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