Answer
Multiples of 1660 are:
1660, 3320, 4980, 6640, 8300, 9960, 11620, 13280, 14940, 16600, 18260, 19920, 21580, 23240, 24900, 26560, 28220, 29880, 31540, 33200, 34860, 36520, 38180, 39840, 41500, 43160, 44820, 46480, 48140, 49800, 51460, 53120, 54780, 56440, 58100, 59760, 61420, 63080, 64740, 66400, 68060, 69720, 71380, 73040, 74700, 76360, 78020, 79680, 81340
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