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22 May, 21:19

What is the greatest common factor of 21 40

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Answers (2)
  1. 22 May, 21:48
    0
    The GCF is 1, their factors are:

    21:1, 3, 7, 21

    40: 1, 2, 5, 8, 10, 20, 40

    The only one they have in common is 1, so 1 is the greatest one.
  2. 22 May, 23:19
    0
    The greatest common factor of 21 and 40 is 1
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