Answer
Multiples of 1721 are:
1721, 3442, 5163, 6884, 8605, 10326, 12047, 13768, 15489, 17210, 18931, 20652, 22373, 24094, 25815, 27536, 29257, 30978, 32699, 34420, 36141, 37862, 39583, 41304, 43025, 44746, 46467, 48188, 49909, 51630, 53351, 55072, 56793, 58514, 60235, 61956, 63677, 65398, 67119, 68840, 70561, 72282, 74003, 75724, 77445, 79166, 80887, 82608, 84329
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