Solutions by everydaycalculation.com

The GCF of 720 and 1918 is 2.

- Find the prime factorization of 720

720 = 2 × 2 × 2 × 2 × 3 × 3 × 5 - Find the prime factorization of 1918

1918 = 2 × 7 × 137 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2

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Find hcf of: 1440 & 3836 360 & 959 2160 & 5754 3600 & 9590 1440 & 1918 720 & 3836 2160 & 1918 720 & 5754 3600 & 1918 720 & 9590 5040 & 1918

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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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