Solutions by everydaycalculation.com

The GCF of 34 and 40 is 2.

- Find the prime factorization of 34

34 = 2 × 17 - Find the prime factorization of 40

40 = 2 × 2 × 2 × 5 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2

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Find hcf of: 68 & 80 17 & 20 102 & 120 170 & 200 238 & 280 68 & 40 34 & 80 102 & 40 34 & 120 170 & 40 34 & 200 238 & 40 34 & 280

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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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