It's a multiple of 9 but not 12.
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The lowest common multiple of 7 and 9 is 63.Here's how to work it out:Multiples of 9 are: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...Multiples of 7 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, ...To find the lowest common multiple you look and find the smallest number that is a multiple of both numbers (in your case 7 and 9). So, in this case the lowest multiple they both have in common is 63.637963The Least Common Multiple (LCM) for 7 9 is 63.
The LCM of 12 and 69 is 276
The Least Common Multiple (LCM) for 21 63 is 63
The least common multiple of 27 and 63 is 189.
Since 63 is a multiple of 9, it is automatically the LCM of this problem.
The Least Common Multiple of 21, 63, 147: 441
The Least Common Multiple of 9, 7, and 3 is 63.
The Least Common Multiple (LCM) for 49 63 21 is 441.
Least common multiple of 63 and 56 is 504.