Question

What is the smallest no. to be added to 689 to make it a perfect square.Find the square root of the perfect square.​

Answer 1

2361

2500>2361

⇒50>

2361

2401>2361

⇒49>

2361

2304<2361

⇒48<

2361

∴2401 is the perfect square nearest to 2361.

∴2401−2361=40 is the number to be added.

∴40 is the least number to be added to 2361 to make it a perfect square.