Example 1.   Find the least common multiple for 4, 6, and 8

The multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44...

The multiples of 6 are: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60...

The multiples of 8 are: 8, 16, 24, 32, 40, 48, 56...

So 24 is the least common multiple