Question: is 20 a multiple of 12?
Answer: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ... 11, 22, 33, 44, 55, 66, 77, 88, 99, 110, ... 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, ... 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, ...