What is the least common multiple for 3 and 5 and 2?
The least common multiple of 3 and 5 is 15. This, however is not
a multiple of 2 so we must find the next common multiple of 3 and
5. This is 30. Since 30 is also a multiple of 2, 30 is therefore
the least common multiple of 3, 5 and 2.