What are the multiples of 15?

They are members of an infinite set comprising of numbers of the form 15*k where k is any integer.

To find the multiples of 15, count by 15. The resulting numbers are multiples of 15.

They are 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300 . . . . ∞

15, 30, 45, 60 and so on.

15, 30, 45, 60, 75, 90, etc., each multiple being 15 more than the previous.

1 x 15 = 15

2 x 15 = 30

3 x 15 = 45

4 x 15 = 60

5 x 15 = 75

and so on.

They are members of an infinite set comprising of numbers of the form 15*k where k is any integer.
here are the first 10: 15 30 45 60 75 90 105 120 135 150