Solutions by everydaycalculation.com

The GCF of 8 and 1680 is 8.

- Find the prime factorization of 8

8 = 2 × 2 × 2 - Find the prime factorization of 1680

1680 = 2 × 2 × 2 × 2 × 3 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 2 × 2 - GCF =
**8**

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Find hcf of: 16 & 3360 4 & 840 24 & 5040 40 & 8400 16 & 1680 8 & 3360 24 & 1680 8 & 5040 40 & 1680 8 & 8400 56 & 1680

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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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