Answer
Multiples of 3111 are:
3111, 6222, 9333, 12444, 15555, 18666, 21777, 24888, 27999, 31110, 34221, 37332, 40443, 43554, 46665, 49776, 52887, 55998, 59109, 62220, 65331, 68442, 71553, 74664, 77775, 80886, 83997, 87108, 90219, 93330, 96441, 99552, 102663, 105774, 108885, 111996, 115107, 118218, 121329, 124440, 127551, 130662, 133773, 136884, 139995, 143106, 146217, 149328, 152439
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