Solutions by everydaycalculation.com

The GCF of 64 and 520 is 8.

- Find the prime factorization of 64

64 = 2 × 2 × 2 × 2 × 2 × 2 - Find the prime factorization of 520

520 = 2 × 2 × 2 × 5 × 13 - 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: 128 & 1040 32 & 260 192 & 1560 320 & 2600 448 & 3640 128 & 520 64 & 1040 192 & 520 64 & 1560 320 & 520 64 & 2600 448 & 520 64 & 3640

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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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