66, 132 & 198!
The first three multiples of 99.
the first three multiples of 3 and 11 is 33,66,and 99.
44, 88, 132
33, 66, 99
88, 176, 264
22, 44, 66
88, 176, 264
132, 264, 396
88, 176, 264
Multiply 11 by 18 and multiply that total by 2 and 3.
they are 198, 306, 396
The common multiples of any two (or more) numbers are multiples of their lowest common multiple (lcm). lcm(9, 11) = 99 → first five common multiples are: 99, 198, 297, 396, 495