EMS Homework Help

     Least Common Multiple & Greatest Common Factor of  two of numbers

 Overview:
In this lesson you will learn how to find the Greatest Common Factor & the Least Common Multiple. If you do not understand the steps there is example below.This will be a simple way of understanding
GCF & LCM.                                                 

LCM steps with Example

1. First you will write down your two numbers on a sheet of paper.
Example:
    2
   
4
2. Then you will write about five or so of the numbers that go into your two numbers. (do this to each number for LCM)
Example:  
    2: 0,1, 2         
      4: 0, 1, 2, 4
 
3. If you don't find a lowest number  in the five Keep going until you find the lowest number they both go into.  (sometimes the lowest number can be one of the two numbers itself )

4. Then when you find your answer circle it or highlight it, this is a good way for your teacher to understand your answer.
Example
    2:0, 1, 2
   
4:0, 1, 2, 4
5. The answer to this problem is 2 because it is the smallest number that goes into both 2 & 4.


GCF steps with Example

1. First you will write down your two numbers on a sheet of paper.
Example:   3   4
2.Then writ down about five or so of the multiples that go into your two numbers. ( do this to each number for GCF)
Example:
 
3: 6, 9, 12, 15, 18   4: 8, 12, 16, 20, 243. If you don't find a highest number  in the five Keep going until you find the highest number they both go into.  (sometimes the highest number can be one of the two numbers itself )
4. Then when you find your answer circle it or highlight it, this is a good way for your teacher to understand your answer.
Example:
    3: 6, 9, 12, 15, 18
    4: 8, 12, 16, 20, 24

5. The answer to this problem is 12 because it is the biggest number that goes in to 3 & 4.