18, 36, 54, 72, 90, 108, 126, 144 +18 . . .
18
18 and 36
The least common multiples of the number 6 and 9 is 3.
18.
The common multiples of 6 and 9 are the infinite set of multiples of their LCM, which is 18. So the common multiples of 6 and 9 are 18, 36, 54, 72, 90, 108, 126, 144, 162, 180, and so on.
Not all of them are. Consider 27. 6 and 9 share a lot of common multiples because they share a common factor.
The common multiple of 9 and 6 is 18 because 9*2 is 18 and 6*3 is 18
The LCM is: 18
Multiples of 90
18
The common multiples of 2 and 9 are 18, 36, 54, 72, etc. There is an infinite number of common multiples for 2 and 9. A common multiple of any two or more numbers is any number into which each of two or more numbers can be divided evenly (zero remainder).
3