What are the first 5 multiples of 15?

15, 30, 45, 60, 75
15x1=15
15x2=15+15=30
15x3=15+15+15=45
15x4=15+15+15+15=60
15x5=15+15+15+15+15=75

The first 5 multiples of 15 are:
15,30,45,60,75