Answer
Multiples of 720 are:
720, 1440, 2160, 2880, 3600, 4320, 5040, 5760, 6480, 7200, 7920, 8640, 9360, 10080, 10800, 11520, 12240, 12960, 13680, 14400, 15120, 15840, 16560, 17280, 18000, 18720, 19440, 20160, 20880, 21600, 22320, 23040, 23760, 24480, 25200, 25920, 26640, 27360, 28080, 28800, 29520, 30240, 30960, 31680, 32400, 33120, 33840, 34560, 35280
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