Solutions by everydaycalculation.com

The GCF of 63 and 140 is 7.

- Find the prime factorization of 63

63 = 3 × 3 × 7 - Find the prime factorization of 140

140 = 2 × 2 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 7

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Find hcf of: 126 & 280 189 & 420 315 & 700 441 & 980 9 & 20 126 & 140 63 & 280 189 & 140 63 & 420 315 & 140 63 & 700 441 & 140 63 & 980

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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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