How do you find the Gcf of 80 and 25?

1 Answer
seph
Dec 3, 2016

5

Explanation:

List down the prime factors of both numbers. Align factors common to both numbers

80 : 2 * 2 * 2 * 2 * 5
25 :                       5 * 5

Collate all common factors

80 : 2 * 2 * 2 * 2 * 5
25 :                       5 * 5
---------------------------------
     :                        5

The product of the collated common factors will be the GCF.

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