find the greatest 4 digit no which is perfect square

Since the number has 4 digits, its square root will always have two digits.

Consider the greatest two-digit number 99.

On squaring 99, we get:

99 × 99 = 9801

Thus, greatest 4-digit number which is a perfect square is 9801.

  • 43

The greatest 4 digit perfect square is 9801 !! 

99 x 99 = 9801 :) 

  • -5
What are you looking for?