Solutions by everydaycalculation.com

The GCF of 30 and 25 is 5.

- Find the prime factorization of 30

30 = 2 × 3 × 5 - Find the prime factorization of 25

25 = 5 × 5 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 5

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Find hcf of: 60 & 50 90 & 75 150 & 125 6 & 5 210 & 175 60 & 25 30 & 50 90 & 25 30 & 75 150 & 25 30 & 125 210 & 25 30 & 175

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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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