24, 48, 72 and so on.
The first three common multiples of 8 and 12 are 24, 48, and 72.
4, 8, 12
They are 4, 8, 12.
LCM is 24, but 48 and 72 are also multiples
The first three multiples of 4 are 4, 8 and 12. For them to be common, they need to be compared to another set of multiples.
2 8 12
24, 48, 72
8, 12, 16 to find multiples, just add 4 any number of times.
24, 48, and 72.
120, 240, 360
24, 48, 72
24, 48, 72