30,60,90 6:6,12,18,24,30,36,42,48,54,60,66,72,78,84,90 15:15,30,45,60,75,90
write the first three common. multiples of 3,4,5
The first three multiples of 99.
1, 660, 5580
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 three common multiples of 8 and 12 are 24, 48, and 72.
The first three multiples of 2 are 2, 4, 6. For them to be common, they need to be compared to another set of multiples.
A single number cannot have common multiples.
If that's 9, 14 and 21, the first three common multiples are 126, 252 and 378.
The first three multiples of 235 are 235, 470 and 705. For them to be common, they need to be compared to another set of multiples. The first three common multiples of 2, 3 and 5 are 30, 60 and 90.
The first three multiples of 3 are 3, 6, 9 The first three multiples of 9 are 9, 18, 27 As the lowest common multiples of 3 and 9 is 9, the common multiples of 3 and 9 are the multiples of 9, thus: The first three common multiples of 3 and 9 are 9, 18, 27
the first three multiples of 3 and 11 is 33,66,and 99.