What is the least common multiple of 2 5 and 9?

Answer 1

That would be 90.
you may think it might be 90,

90
90 which is 2 x 5 x 9

No smaller number can be divided evenly by each of the three numbers.

Answer 2

2=2 x 1

5=5 x 1

9=3^2

2 x 3^2 x 5= 2 x 9 x 5= 90

The LCM of 2,5,9 is 90.

Answer 3

the LCM of 5,9, and 2 is 90

Answer 4

90