Yes it is. 3x30=90
30, 60, 90 and so on. Multiples of 30.
90
8
Eight of them.
LCM = 9x5x2 = 90 all multiples are 90, 180, 270, etc
30, 60, 90 and so on.
90. All numbers that are multiples of 3, 5 & 9 are multiples of their lowest common multiple lcm(3, 5, 9) = 45 → multiples of 45 between 49 and 95 is 2 x 45 = 90.
3,6,9,12,15,18
3 of them.
30, 60 and 90
The first five positive integer multiples of 90 are: 1 x 90 = 90 2 x 90 = 180 3 x 90 = 270 4 x 90 = 360 5 x 90 = 450
The LCM of 15 (which is 3*5) and 18 (which is 2*3^2) is 90 (which is 2*3^2*5).