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3 February, 21:16

Find the GCF of 72 and 84 using prime factorizations

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  1. 3 February, 21:25
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    GCF = 12

    Step-by-step explanation:

    72 = 2³·3²

    84 = 2²·3·7

    Common prime factors are 2 and 3. The lowest power of 2 is 2; the lowest power of 3 is 1. The greatest common factor is 2²·3 = 12.
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