They are the six multiples of 15.
Since 3 is a factor of 15, the first three common multiples of 3 and 15 are 15, 30, and 45.
1 and 3 are the only numbers that have common multiples of 15 and 18.
3
3
The common multiples of 3 and 15 from 1 to 100 are 15, 30, 45, 60, 75, 90
The common multiples of 3 and 15 from 1 to 100 are 15, 30, 45, 60, 75, and 90.
The LCM is 15.
Any multiple of 15.
Since the lowest common multiple of 3 and 5 is 15, the common multiples of 3 and 5 are the multiples of 15: 30, 45, 60, 75, 90, etc...
Multiples of 3 include 3, 6, 9, 12, 15 and so on. For them to be common, they need to be compared to another set of multiples.
15 1*15 =15 5*3 = 15