Solutions by everydaycalculation.com

The GCF of 70 and 25 is 5.

- Find the prime factorization of 70

70 = 2 × 5 × 7 - 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: 140 & 50 210 & 75 350 & 125 14 & 5 490 & 175 140 & 25 70 & 50 210 & 25 70 & 75 350 & 25 70 & 125 490 & 25 70 & 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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