Solutions by everydaycalculation.com

The gcf of 3 and 75 is 3.

- Find the prime factorization of 3

3 = 3 - Find the prime factorization of 75

75 = 3 × 5 × 5 - 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 & 150 9 & 225 1 & 25 15 & 375 21 & 525 6 & 75 3 & 150 9 & 75 3 & 225 15 & 75 3 & 375 21 & 75 3 & 525

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