Solutions by everydaycalculation.com

The GCF of 45 and 252 is 9.

- Find the prime factorization of 45

45 = 3 × 3 × 5 - Find the prime factorization of 252

252 = 2 × 2 × 3 × 3 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 3 × 3 - GCF =
**9**

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Find hcf of: 90 & 504 135 & 756 15 & 84 225 & 1260 315 & 1764 90 & 252 45 & 504 135 & 252 45 & 756 225 & 252 45 & 1260 315 & 252 45 & 1764

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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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