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2 April, 15:32

Which pair of numbers have a greatest common factor of 7?

Select each correct answer.

7 and 14

28 and 7

21 and 3

7 and 1

+2
Answers (1)
  1. 2 April, 16:22
    0
    The GCF is the number that is a factor of both (or all) of the numbers of a given set and which is the biggest factor of this kind (often the smaller number of the two)

    7 and 14 have a greatest common factor of 7.

    28 and 7 also have a GCF of 7, so the first two responses fit.

    21 and 3 have a GCF of 3, so that isn't correct.

    7 and 1 have a GCF of 1, so that's incorrect as well.
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