Question

Find the greatest number of five digits which is a perfect square​

Answer 1

Answer:

Step-by-step explanation:

99856

First of all instead of finding the largest 5 digit perfect square number try to find out the square root of that number.

The way to find is :

1. First find the square of multiple of 100(like 100,200,300,400......)

2. Since square of 400 is 6 digit number, therefore, it should be in between 300 and 400 (since the square of 300 is 5 digit number)

3. Thereafter find the square of 350, 340, 330, 320 then 310. You'll find that square root number will lie in between 310 and 320.

4. Then find the square of 315. It is again a 5 digit number. It means the square root number will be in between 315 and 320.

5. Then find the square of 317 or 318. In this case square of both the numbers is a 6 digit number.

6. Finally find the square of 316 which is the required result.

(316^2=99856)