Answer
Multiples of 663 are:
663, 1326, 1989, 2652, 3315, 3978, 4641, 5304, 5967, 6630, 7293, 7956, 8619, 9282, 9945, 10608, 11271, 11934, 12597, 13260, 13923, 14586, 15249, 15912, 16575, 17238, 17901, 18564, 19227, 19890, 20553, 21216, 21879, 22542, 23205, 23868, 24531, 25194, 25857, 26520, 27183, 27846, 28509, 29172, 29835, 30498, 31161, 31824, 32487
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