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8 December, 10:41

Find the greatest common factor of 20 and 36

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Answers (2)
  1. 8 December, 11:17
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    So the greatest common factor would be 4 because it can be evenly divided into both 20 and 36, 4 goes into 36 9 times and goes into 20 5 times.
  2. 8 December, 12:47
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    20 : 2 = 10

    10 : 2 = 5

    5 : 5 = 1

    20 = 2 · 2 · 5

    36 : 2 = 18

    18 : 2 = 9

    9 : 3 = 3

    3 : 3 = 1

    36 = 2 · 2 · 3 · 3

    GCF (20, 36) = 2 · 2 = 4
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