30, 60, 90.
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, and 45 are.
135, 270, 405
30 60 90
60, 120, 180
60, 120, 180
45, 90, 135
60, 120 and 180
5 10 15 20 25 30
LCM=Least common multiple Thus,the least number that multiplies both 15 and 25 is %. sorry about the GCF ?