15, 30, 45, 60, 75, 90, 105, 120, 135.
The first 5 multiples of 135 are: 135, 270, 405, 540, and 675.
105, 120, 135
135, 270, 405 and so on.
The first ten multiples of 15 are 15, 30, 45, 60, 75, 90, 105, 120, 135, and 150.
The first 11 multiples of 15 are: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165.
135, 270, 405
45, 90, 135
They are: 105, 120, 135 and 150.
15, 45, 75, 105, 135
15, 30, 45, 60, 75, 90, 105, 120, 135
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, . . .
All multiples of the lowest common multiple of 15 and 27 are in both their times tables. The lcm of 15 and 27 is 135, so all multiples of 135 are in both the 15 and 27 times tables: 135, 270, 405, 540, 675, 810, 945, 1080, 1215, 1350, ...