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13 March, 22:29

Find the gcf of 72 and 80

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  1. 13 March, 23:21
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    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
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