Solutions by everydaycalculation.com

The GCF of 30 and 23 is 1.

- Find the prime factorization of 30

30 = 2 × 3 × 5 - Find the prime factorization of 23

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

Therefore, GCF = 1

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Find hcf of: 60 & 46 90 & 69 150 & 115 210 & 161 60 & 23 30 & 46 90 & 23 30 & 69 150 & 23 30 & 115 210 & 23 30 & 161

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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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