The Least Common Multiple (LCM) of 16 and 32 is 32. The other common multiples of 16 and 32 are all multiples of 32, i.e. 32, 64, 96, 128, 160, 192, 224, etc.
144
The firt three multiples of 8 are 8, 16 and 24.
Multiples of 2 are 2, 4, 6, 8, 10, 12, 14, 16, 18, . . . Multiples of 8 are 8, 16, 24, 32, 40, 48, 56, 64, 72, . . .
The first five multiples of 4 are 4, 8, 12, 16 and 20. For them to be common, they need to be compared to another set of multiples.
16, 32, 48
They are: 144, 288 and 432
8, 16, 24
144, 288, 432
144, 288, 432
48, 96, 144
8 16 24
400, 800, 1200
48, 96 and 144
Well, honey, the common multiples of 4, 8, and 16 are numbers that all three can divide evenly into. So, the first few common multiples would be 16, 32, 48, and so on. Just keep adding 16 to get more of those bad boys. Happy counting!
80, 160, 240
32, 64, 96