Solutions by everydaycalculation.com

The GCF of 30 and 75 is 15.

- Find the prime factorization of 30

30 = 2 × 3 × 5 - 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 × 5 - GCF =
**15**

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Find hcf of: 60 & 150 90 & 225 10 & 25 150 & 375 6 & 15 210 & 525 60 & 75 30 & 150 90 & 75 30 & 225 150 & 75 30 & 375 210 & 75 30 & 525

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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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