Solutions by everydaycalculation.com

The GCF of 20 and 46 is 2.

- Find the prime factorization of 20

20 = 2 × 2 × 5 - Find the prime factorization of 46

46 = 2 × 23 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2

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Find hcf of: 40 & 92 10 & 23 60 & 138 100 & 230 140 & 322 40 & 46 20 & 92 60 & 46 20 & 138 100 & 46 20 & 230 140 & 46 20 & 322

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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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