Solutions by everydaycalculation.com

The GCF of 8640 and 8400 is 240.

- Find the prime factorization of 8640

8640 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 - Find the prime factorization of 8400

8400 = 2 × 2 × 2 × 2 × 3 × 5 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 2 × 2 × 2 × 3 × 5 - GCF =
**240**

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Find HCF of: 4320 & 4200 2880 & 2800 1728 & 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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