paolaosorio paolaosorio

09-10-2019
Mathematics

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Find the GCF of 72 and 84 using prime factorizations

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sqdancefan sqdancefan

09-10-2019

Answer:

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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