5 common multibles of 7 and 20

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Thvo · Answer 1 · 2017-03-08T15:42:56+0000

7 = 7
20 = 2 x 2 x 5

Least common multiple is 2 x 2 x 5 x 7 = 140
Other multiples are multiples of 140 = 280, 420, 560, 700