Answer
Multiples of 2172 are:
2172, 4344, 6516, 8688, 10860, 13032, 15204, 17376, 19548, 21720, 23892, 26064, 28236, 30408, 32580, 34752, 36924, 39096, 41268, 43440, 45612, 47784, 49956, 52128, 54300, 56472, 58644, 60816, 62988, 65160, 67332, 69504, 71676, 73848, 76020, 78192, 80364, 82536, 84708, 86880, 89052, 91224, 93396, 95568, 97740, 99912, 102084, 104256, 106428
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