Question

the smallest integer with 4 digits which is a perfect square

Answer 1

ANSWER IS......
1024
IT IS PERFECT SQUARE OF 32....
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Answer 2

smallest 4digit number is 1000

so using dvision method find the smallest one

            3  2        

      3  ∫ 1 0 0 0

              9          

     62     1 0 0

               1 2 4      

We can't have enough number so 31² (961) is only 3 digit number

So 32² = 1024 is the smallest 4digit number