Solutions by everydaycalculation.com

The GCF of 305 and 210 is 5.

- Find the prime factorization of 305

305 = 5 × 61 - Find the prime factorization of 210

210 = 2 × 3 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 5

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Find hcf of: 610 & 420 915 & 630 1525 & 1050 61 & 42 2135 & 1470 610 & 210 305 & 420 915 & 210 305 & 630 1525 & 210 305 & 1050 2135 & 210 305 & 1470

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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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