15, 30, 45
Since 3 is a factor of 15, the first three common multiples of 3 and 15 are 15, 30, and 45.
15, 30, 45
15 & 20 have an infinite number of Common Multiples; the first three are 60, 120 and 180.
15, 30, 45
15, 30, and 45 are.
105, 120, 135
There are more than 5 multiples of three, but here are the first 5: * 6 * 9 * 12 * 15 * 18
The first three multiples of 3 and 5 are 15, 30 and 45.
135, 270, 405
60, 120, 180
30 60 90
72