Definition:
The smallest number, other than zero, that is a common multiple of two or more numbers; Smallest positive integer that is a multiple both of a and of b (c, d, etc.)

Summary:
The LCM is the least common multiple of 2 or more numbers. There are two different processes to find the LCM of 2 numbers.

Steps:
There is more than one way to find the LCM of a number
First Way: List the multiples of your numbers. Then, find the common multiples, and finally, find the least common multiples.



Easy Problems
*Find the LCM of 18 and 12
Find the LCM of 4 and 8
Answer 2


Medium Problems
*Find the LCM of 3, 6, and 12
What is the LCM of 10, 22,70?
The answer is 2



Hard Problems
*Find the LCM of 12, 24, and 72
Find the LCM of 72, 84, and 96

What is the LCM 222,332,444?
The answer is 2!!



Pictures
external image lcm.jpg

http://www.atlantatraffic.com/KSUWebsite/wp-content/uploads/2009/09/lcm.jpg
external image SIU3L3GL.gif
least common mulitple. online image. available www.math.com 11/5/09

external image gcf.jpg


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