Solutions by everydaycalculation.com

The GCF of 45 and 1050 is 15.

- Find the prime factorization of 45

45 = 3 × 3 × 5 - Find the prime factorization of 1050

1050 = 2 × 3 × 5 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 3 × 5 - GCF =
**15**

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Find hcf of: 90 & 2100 135 & 3150 15 & 350 225 & 5250 9 & 210 315 & 7350 90 & 1050 45 & 2100 135 & 1050 45 & 3150 225 & 1050 45 & 5250 315 & 1050 45 & 7350

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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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