Answer
Multiples of 1239 are:
1239, 2478, 3717, 4956, 6195, 7434, 8673, 9912, 11151, 12390, 13629, 14868, 16107, 17346, 18585, 19824, 21063, 22302, 23541, 24780, 26019, 27258, 28497, 29736, 30975, 32214, 33453, 34692, 35931, 37170, 38409, 39648, 40887, 42126, 43365, 44604, 45843, 47082, 48321, 49560, 50799, 52038, 53277, 54516, 55755, 56994, 58233, 59472, 60711
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