Ответ:
4
6, 9
8, 12, 16
10, 15, 20, 25
12, 18, 24, 30, 36
14, 21, 28, 35, 42, 49
16, 24, 32, 40, 48, 56, 64
18, 27, 36, 45, 54, 63, 72, 81
4
6, 9
8, 12, 16
10, 15, 20, 25
12, 18, 24, 30, 36
14, 21, 28, 35, 42, 49
16, 24, 32, 40, 48, 56, 64
18, 27, 36, 45, 54, 63, 72, 81