60 is the LCM of 12 and 30. All multiples of 60 are multiples of 12 and 30 as well.
http://wiki.answers.com/Q/What_are_multiples_of_12...

The first seven multiples of 4 (or eight if you include multiplication by zero). Specifically : 4, 8, 12, 16, 20, 24, and 28. (4 x 1 through 4 x 7)
http://wiki.answers.com/Q/What_multiples_of_four_a...

The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the
http://wiki.answers.com/Q/What_is_the_least_common...

The LCM of 30 and 54 is 270.
http://wiki.answers.com/Q/What_is_the_least_common...
