Solutions by everydaycalculation.com

The GCF of 50 and 45 is 5.

- Find the prime factorization of 50

50 = 2 × 5 × 5 - Find the prime factorization of 45

45 = 3 × 3 × 5 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 5

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Find hcf of: 100 & 90 150 & 135 250 & 225 10 & 9 350 & 315 100 & 45 50 & 90 150 & 45 50 & 135 250 & 45 50 & 225 350 & 45 50 & 315

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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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