the LCM for these numbers is 3
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∙ 2011-03-25 16:45:19LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.
147
The Least Common Multiple of 21, 63, 147: 441
147
147, 294, 441 and so on.
147, 294, 441 and so on.
147
Multiply 21 and 11 to get a common multiple. Since 21 and 11 have no common factors, that also happens to be the least common multiple.All other common multiples are multiples of this least common multiple.
The Least Common Multiple (LCM) of (3,7) is 21.
The least common multiple of the numbers 72 and 21 is 504.
It is: 147
105