First, we write down the multiples of 4, 6 and 8
The multiples of 4 are: 4, 8, 12, 16, 20, 24, 28 ….
The multiples of 6 are: 6, 12, 18, 24, 30, 36 …
The multiples of 8 are: 8, 16, 24, 32, 40….
From this, we can say that 24 is the first and least multiple which is common to 4, 6 and 8.
Therefore, 24 is the least common multiple of 4, 6 and 8