Solutions by everydaycalculation.com

The GCF of 9 and 140 is 1.

- Find the prime factorization of 9

9 = 3 × 3 - 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 = 1

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Find hcf of: 18 & 280 27 & 420 45 & 700 63 & 980 18 & 140 9 & 280 27 & 140 9 & 420 45 & 140 9 & 700 63 & 140 9 & 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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