Arthur D. answered 10/02/14
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5: {0,5,10,15,20,25,30,35,40,45}
11: {0,11,22,33,44,55,66,77,88,99}
15: {0,15,30,45...
you can finish the rest
multiply each number by 0, then 1, then 2, then 3, and so on until you get the desired number of multiples
0 is a multiple of every number !