Solutions by everydaycalculation.com

The GCF of 18 and 43 is 1.

- Find the prime factorization of 18

18 = 2 × 3 × 3 - Find the prime factorization of 43

43 = 43 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 1

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Find hcf of: 36 & 86 54 & 129 90 & 215 126 & 301 36 & 43 18 & 86 54 & 43 18 & 129 90 & 43 18 & 215 126 & 43 18 & 301

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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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