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17 October, 10:41

What if most common factor of 42 and 15

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Answers (2)
  1. 17 October, 10:58
    0
    The prime factorization of 15 is: 3 x 5The prime factorization of 42 is: 2 x 3 x 7The prime factors and multiplicities 15 and 42 have in common are: 33 is the gcf of 15 and 42gcf (15,42) = 3
  2. 17 October, 12:10
    0
    I think it's 3.

    1, 2, 3, 6, 7, 14, 21, 42

    1,3,5,15

    3 is the common factor
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