Find the least common multiple of 3 and 8.
The multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ...
The multiples of 8 are 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, ...
The least common multiple of 3 and 8 is 24 because it is the smallest number that appears in both lists.