90, 180, 270.
90, 180, 270
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.
15, 30, 45
15, 30, and 45 are.
15, 30, 45
The first 10 multiples of 5 are: 5, 10, 15, 20, 25, 30, 35, 40, 45, and 50.
Since 3 is a factor of 15, the first three common multiples of 3 and 15 are 15, 30, and 45.
45, 90, 135
45, 90, 135
15, 30, 45
The first three multiples of 3 and 5 are 15, 30 and 45.
45, 90 and 135