324, 648, 972 and so on.
There is only one LCM and you need at least two numbers to find it.
Multiples of 9: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90.
The greatest commmon factor of 81 and 67 is 1.
1, 9, and 81 are the only multiples of 81
The multiples of nine are infinite, starting with these: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90 +9 . . .
9, 18, 27, 36, 45, 54, 63, 72, 81
The GCF is 27. The LCM is 81.
9, 18, 27, 36, 45, 54, 63, 72, 81
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
9, 18, 27, 36, 45, 54, 63, 72, 81.
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
36