Question

What is the smallest 4 digit perfect square number?

Answer 1

1024
Hence, 1024 is the smallest four-digit number which is a perfect square.

Answer 2

The Answer 1024

Explained

31^2 = 961

32^2= 1024

33^2 = 1089

34^2 = 1156

Least number of four digits = 1000.

(32)2 is more than 1000 by 24.

So, the least number to be added to 1000 is 24.

1000 + 24 = 1024

Therefore, the smallest four digit number which is a perfect square is 1024.