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The number $100$ has four perfect square divisors, namely $1,$ $4,$ $25,$ and $100.$

 

What is the smallest positive integer that has exactly $2$ perfect square divisors?

 Jun 22, 2024
 #1
avatar+129725 
+1

4

 

Divisors are  1 2 4

 

cool cool cool

 Jun 22, 2024

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