Solutions by everydaycalculation.com

The gcf of 3 and 6 is 3.

- Find the prime factorization of 3

3 = 3 - Find the prime factorization of 6

6 = 2 × 3 - To find the gcf, multiply all the prime factors common to both numbers:

Therefore, GCF = 3

The greatest common factor (gcf) is also known as greatest common divisor (gcd) or highest common factor (hcf).

Find hcf of: 6 & 12 9 & 18 1 & 2 15 & 30 21 & 42 6 & 6 3 & 12 9 & 6 3 & 18 15 & 6 3 & 30 21 & 6 3 & 42

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