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how to find whether a number is a perfect square

 Feb 14, 2019
 #1
avatar+105894 
+1

What number?  Can I use a calculator?

 Feb 14, 2019
 #2
avatar+97 
+1

A Perfect square is when two rational numbers are multiplied together. That means no numbers such as 1.65, 5.89 etc.

 

sqrt(5) is a non perfect square as you get a irational number. 

2.236...

 

Do you see what i mean?

 Feb 14, 2019
 #3
avatar+53 
+1

A square number is a number that is just one integer multiplied by itself. Squares can never be negative.

 Feb 15, 2019

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