0
Anonymous
3, 6, 9, 12, 15 and just keep adding three till you get to 120.
Wiki User
105, 120, 135
-105
60, 120, 180
40, 80, 120
44
They are: 60 120 and 180
120, 240, 360
40, 80, 120 and so on.
120, 240, 360 and so on..