Solutions by everydaycalculation.com

The GCF of 3 and 65 is 1.

- Find the prime factorization of 3

3 = 3 - Find the prime factorization of 65

65 = 5 × 13 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 1

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Find hcf of: 6 & 130 9 & 195 15 & 325 21 & 455 6 & 65 3 & 130 9 & 65 3 & 195 15 & 65 3 & 325 21 & 65 3 & 455

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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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