Question

what is the least number of 4 digits which is a perfect square?

Answer 1

32^2 is more than 1000 by 24; So the least number to be added to 1000 is24. Therefore, 1000+24 = 1024 is the smallest four digit number which is a perfect square.

Answer 2

Hey.

Smallest 4 digit no. is 1000 which is not a perfect square.

The nearest perfect square to 1000 is 1024.

So, the least 4 digit number which is a perfect square is 1024 .

Thanks.