Any multiple of 360.
They are: 180, 360 and 540
180, 360, 540 and so on.
72, 144, 216, 288, 360.
90, 180, 270, 360, 450, 540, 630 . . .
72, 144, 216, 288, 360
360
There is no limit to the amount of common multiples. Numbers are infinite. If you take an example of a common multiple such as 360 then you can just keep adding noughts to it forever ie 3600 36000 etc and i'ts still a common multiple of 15 and 18.
The common multiples of 18 and 24 are 72 and 144.
1, 660, 5580
There are no greatest common multiples only greatest common factors
All multiples of 36 are multiples of 18.
there are infinite amount of common multiples.