The multiples of 80 are: 80, 160, 240, 320, 400, 480, 560, 640, 720, 800, 880, & 960.
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Not all multiples of 40 are multiples of 80. Only the even multiples of 40 are also multiples of 80. The odd multiples, e.g. 40, 120, 200, 280, and 360, are not multiples of 80.
All numbers that are multiples of all 2, 8 & 10 are multiples of their lowest common multiple which is 40.The multiples of 40 are 40, 80, 120, 160, ... of which only 80 is between 61 and 107.
56, 63, 70 and 77
64, 72, 80, and 88
84, 91 and 98