Find the gcf of 72 and 80

Question

Mathematics

Summer Rowland

13 March, 22:29

Find the gcf of 72 and 80

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Answers (1)

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Lane · Answer 1

One way to I solve this is by listing all the ways it can be multiplied by:

72: 1*72, 2*36, 3*24, 4*18, 6*12, 8*9.

80: 1*80, 2*40, 4*20, 5*16, 8*10.

Group the factors that they have in common.

Which are 1, 2, 4, and 8.

After that, find the greatest common factor that they both share.

Answer: 8