315, 630, 945, 1260, 1575 . . .
315
315
63, 126, 189, 252, 315 . . .
There are an infinite number of common multiples for 7 and nine. Some of them are 63, 126, 189, 252, 315, and 378.63
Any pair of numbers has an infinite set of common multiples. The lowest common multiple of 9 and 21 is 63 and the others are multiples of this, e.g. 63, 126, 189, 252, 315, ...
The lowest common multiple of 7 and 9 is 63. The common multiples of 7 and 9 are therefore the infinite set of multiples of 63. Thus, the common multiples of 7 and 9 are 63, 126, 189, 252, 315, 378, 441, 504, 567, 630, 693, and so on.
63, 126, 189, 252, 315
They are: 63, 126, 189, 252, 315, 378.
Two common multiples of 21 and 15 are 105 and 315.
Any multiple of 315.
The Least Common Multiple (LCM) of (5,9,7) is 315.The LCM of 5, 7, and 9 is 315.
They are both divisible by 9 and their lowest common multiple is 315