Question:
What is the least number that should be added to 6200 to make it a perfect square?
Solution:
First, find the square root of 1385 by long division method.
Hence, the least number is 16 , which should be subtracted from 1385 to get a perfect square and the required perfect square number $=1385-16=1369$
$\therefore$ Square root of $1369=\sqrt{37 \times 37}=37$