Answer
Multiples of 401 are:
401, 802, 1203, 1604, 2005, 2406, 2807, 3208, 3609, 4010, 4411, 4812, 5213, 5614, 6015, 6416, 6817, 7218, 7619, 8020, 8421, 8822, 9223, 9624, 10025, 10426, 10827, 11228, 11629, 12030, 12431, 12832, 13233, 13634, 14035, 14436, 14837, 15238, 15639, 16040, 16441, 16842, 17243, 17644, 18045, 18446, 18847, 19248, 19649
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