10. {0, 1, 2, 3, 4, 5, 6, 7, 10, 12, 21}
11.
D³= {1;3}
D⁵= {1;5}
D⁶={ 1;2;3;6}
D¹²={ 1;2;3;4;6;12}
D¹⁸={1;2;3;4;6;9;18}
12.
M³= 3,6,9,12,15,18,21,24,27....
M⁵= 5,10,15,20,25,30,35.....
M⁶= 6,12,18,24,30,36,42,48....
M¹²= 12,24,36,48....
M¹⁸= 18,36,54,72...
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