Question

find greatest five digit number which is a perfect square

Answer 1

Step-by-step explanation:

subtracting 143 from 99999 we get, 99999 – 143 = 99856. Hence, 99856 is the largest five- digit perfect square number. Finally, the largest five-digit perfect square number is 99856 whose square root is 316.

Answer 2

Answer:

316

Step-by-step explanation:

99999 is not a perfect square.

Now, subtracting 143 from 99999 we get, 99999 – 143 = 99856.

Hence, 99856 is the largest five- digit perfect square number.

For finding the square root of 99856 we could express 99856 in terms of prime factors as 24×792 and then taking the root, we get the square root of 99856 as:

24×792−−−−−−−√=22×79=316