Solutions by everydaycalculation.com

The GCF of 70 and 84 is 14.

- Find the prime factorization of 70

70 = 2 × 5 × 7 - Find the prime factorization of 84

84 = 2 × 2 × 3 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 7 - GCF =
**14**

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Find hcf of: 140 & 168 35 & 42 210 & 252 350 & 420 490 & 588 10 & 12 140 & 84 70 & 168 210 & 84 70 & 252 350 & 84 70 & 420 490 & 84 70 & 588

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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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