What's the least common multiple (lcm) of 2, 6, and 8

Divide all three numbers by 2, it gives you 1,3,4, divide 1,3,4 by 2 again because you can still divide 4, the reason is because if you use 1 to divide these numbers you won't get the main answer.

after dividing 2 by 1,3,4 you'll get 1,3,2. divide it by 2 and you will get 1,3,1.

Now this time, you'll divide the numbers by 3, because its the last number and you'll get 1,1,1. Then you multiply all your dividends and your answer will be 24