What is the least common multiple of 6 10 and 12?

One way to find the LCM of two or more numbers is to list the multiples of each number until there is one that is common to all the numbers:

6, 12, 18, 24, 30, 36, 42, 48, 54, 60

12, 24, 36, 48. 60

10, 20, 30, 40, 50, 60

The LCM of 6, 12, and 10 is 60.