Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 = 210, the LCM
That's known as the least common multiple, or LCM.
You normally calculate the "least common multiple" for two or more numbers - not for a single number. The "least common multiple" of a single number, of course, is the number itself. Not much calculation involved there. Also, the "least common multiple" of several numbers must be at least as large as the largest of the numbers.
The least common denominator is the least common multiple of the denominators.
The common multiples of 9 and 16 are 144, 288, 432 and so on.
The least common multiple of 14 and 27 is 378
least common multiple
The least common multiple of 18 , 56 = 504
The Least Common Multiple (LCM) for 38 15 is 570.
Least common multiple of 29 and 30 is 870.
The least common multiple of 6 and 34 is 102.
The least common multiple of 35 , 13 = 455The least common multiple of 35 , 13 = 455
There is not a least common multiple of a single number, such as 36, because there cannot be a least common multiple without two or more numbers to compare. Common multiples are multiples that the numbers being compared have in common. The least common multiple is the smallest multiple that all the numbers being compared have in common. Examples: The least common multiple of 27 and 36 is 108. The least common multiple of 32 and 36 is 288. The least common multiple of 36 and 72 is 72.