Question

Find the greatest number of six digits which is a perfect square.

Answer 1

The Largest 6 digit number is $999999$.

Step I: Use Long Division method to find the square root of $999999$

Step II: Subtract the Remainder from the largest 6 digit number.

$\Rightarrow 999999-1998=998001$

Thus, the largest 6 digit perfect square is $998001=(999{)}^2$