Find the greatest number of four and five digits, which are perfect square.
Also find least number four digits, which is perfect square.
I have solved but with help of calculator. 9805 ,99856 and least is 1024.are these correct?
Please tell me how can I find these without the usage of calculator.
Actually you are well on your way:
You found 32^2=1024 <--- the smallest
and 316^2 = 99856 < -- the largest
So each of the numbers from 32 to 316 will have a perfect square.
It said to find the number of those, not the actual value of them
316 - 32 + 1 = 285