Answer
Multiples of 1780 are:
1780, 3560, 5340, 7120, 8900, 10680, 12460, 14240, 16020, 17800, 19580, 21360, 23140, 24920, 26700, 28480, 30260, 32040, 33820, 35600, 37380, 39160, 40940, 42720, 44500, 46280, 48060, 49840, 51620, 53400, 55180, 56960, 58740, 60520, 62300, 64080, 65860, 67640, 69420, 71200, 72980, 74760, 76540, 78320, 80100, 81880, 83660, 85440, 87220
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