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.
The first 3 common multiples of 4 and 12 are: 12, 24, 36
4, 8 and 12 are the first 3 common multiples of 2 and 4
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.
12, 24, and 36 are.
12, 24, 36
12, 24, 36
2 8 12
12, 24, 36.
12, 24, 36
4 8 12 and so on an so forth
12, 24, and 36