63 and?
Sorry, but you need to specify at least two numbers in order to have an LCM.
http://en.wikipedia.org/wiki/Least_common_multiple
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Since 63 is a multiple of 9, it is automatically the LCM of this problem.
The least common multiple of the numbers 190 and 63 is 11,970.
The Least Common Multiple of 21, 63, 147: 441
least common multiple of 63 and 84 is 252.
There cannot be a least common multiple if there are not at least two numbers. The least common multiple is the smallest number that is a multiple of the two (or more) numbers. For example, the least common multiple of 4 and 6 is 12. The multiples of 63 are 63, 126, 189, 252, 315, 378, 441, ...