Answer
Multiples of 1561 are:
1561, 3122, 4683, 6244, 7805, 9366, 10927, 12488, 14049, 15610, 17171, 18732, 20293, 21854, 23415, 24976, 26537, 28098, 29659, 31220, 32781, 34342, 35903, 37464, 39025, 40586, 42147, 43708, 45269, 46830, 48391, 49952, 51513, 53074, 54635, 56196, 57757, 59318, 60879, 62440, 64001, 65562, 67123, 68684, 70245, 71806, 73367, 74928, 76489
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