They have to be multiples of 15 so all of them will be multiples of 3. They all have to be even so you are left with 30, 60, 90
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.
The common multiples of 3 and 15 from 1 to 100 are 15, 30, 45, 60, 75, and 90.
The common multiples of 3 and 15 from 1 to 100 are 15, 30, 45, 60, 75, 90
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...
3
Any multiple of 15.
The LCM is 15.
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, 30, 45,60,75,and 90
30 and 60 (if you count 60)