65, 70, 75, 80, 85.
The first 6 multiples of 5 are: 5, 10, 15, 20, 25, and 30.
Infinite. Here are the first 10:85, 170, 255, 340, 425, 510, 595, 680, 765, 850 . . .
-15
7,14,21,28,35
The first 5 multiples of seventeen are 17,34,51,68, and 85.
The first 5 multiples of 17 are: 17, 34, 51, 68, and 85.
1, 85 5, 17
85, 170, 255, 340, 425 . . .~
Any multiple of 85.
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.
17, 34, 51, 68, 85
17, 34, 51, 68, 85
111
85, 170, 255, 340, 425, 510, 595, 680, 765 and 850.
65, 70, 75, 80, 85.
The first 5 common multiples are the first 5 multiples of their lowest common multiple (LCM) LCM(9, 10) = 90 → first 5 common multiples are 90, 180, 270, 360, 450.