【 】Factors of 18||What are the Factors of 18? ||Factor Pairs of 18

Factors of 18||What are the Factors of 18?






Factors of 18||What are the Factors of 18?







Today we are going to find out the factors of 18 in just few steps.


              Step-1:


◆The numbers that can divide 18 without remainder are called 18's factors.


◆Rule-1: N's factor is the number that can divide N without remainder.


◆Notice that the factors always includes 1 and itself.




             Step-2:

Notice that the factors always includes 1 and itself.

So,the factors of 18 are 1, ............18.


●A simple way is to find what pairs of numbers multiply to get 18.



●18 = 1× 18



18 is divisible by 1 and 18 without any remainder.So,1 and 18 are the two factors of 18.


Proofs:


●18/1=18
●18/18=1





           Step-3:

Already we have gotten two factors of 18 which are 1 and 18.In this step we will find out other factors of 18 by applying the following rule.



◆N's factor is the number that can divide N without remainder.


So,the numbers that can divide 18 without remainder are called 18's factors.


●A simple way is to find what pairs of numbers multiply to get 18.




●18=2×9
●18=3×6




Proofs:


●18/2=9

●18/9=2

●18/3=6
●18/6=3



Course:How to Find Factors of Numbers



18 is divisible by 2,3,6 and 9 without any remainder.


So,the total number of positive factors of 18 (including 1 and itself) are 1,2,3,6 ,9 and 18.


            Step-4

●We have to keep in mind that the factors of an integer include both the positive and negative integers.


So, the factors of 18  include negative numbers or integers. Hence, all the positive factors of 18 can be easily converted to negative numbers .The negative factors of 18 are given below:

 -1,-2,-3,-6 ,-9 and -18.

Look carefully:


(◆Negative times  Negative=Positive) 


◆18= -1 × -18

◆18= -2 × -9

◆18=-3×-6




So,the total number of  negative factors of 18  are --1,-2,-3,-6 ,-9 and -18.

●How many factors does the number 18 have?

Ans:The number 18 has 12 factors totally.The number 18 has 6 positive factors and 6 negative factors.


●1,2,3,6 ,9 and 18

 ●-1,-2,-3,-6 ,-9 and -18


◆Factor Pairs of 18

Here are the factor pairs of 18.

●A simple way is to find what pairs of numbers multiply to get 18.

●18=1 × 18
●18=2 ×9
●18=3×6


Look carefully:



●18=-1 × -18
●18=-2 ×-9
●18=-3×-6

 The integer 18 has 6 factor pairs.These are given below:

 1×18,2×9 ,3×6

 and

-1×-18,-2×-9 ,-3×-6.




Continue





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