9, 18, 27, 36, 45, 54, 63, 72, 81
The first two multiples are 9 and 8.
9, 18, 27
9, 18, 27, 36.
9, 18, 27, 36, 45, 54
They are: 9 18 27 36 45 54 63 72 and 81
There are an infinite number of multiples of 9
9, 18, 27, 36, 45, 54, 63, 72.
What about them?
The first three multiples of 3 are 3, 6, 9 The first three multiples of 9 are 9, 18, 27 As the lowest common multiples of 3 and 9 is 9, the common multiples of 3 and 9 are the multiples of 9, thus: The first three common multiples of 3 and 9 are 9, 18, 27
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
The multiples of nine are infinite, starting with these: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90 +9 . . .