Example: 30 and 42
List the multiples.
30, 60, 90, 120, 150, 180, 210
42, 84, 126, 168, 210
Once you hit the same number, you've found the LCM.
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List the multiples of 324 and whatever the other number is. The first number that appears on both lists is the LCM.
By making of table of their values, and when you find a multiple that matches, that's the LCM. The answer is 24
Identify the first three common multiples of 4,12,16 48, 96, 144
List the multiples.6, 12, 18, 249, 18, 27The LCM is 18.
At least two or more numbers are needed to find their LCM