\(n\) is perfect!
Number Theory
Level
4
What is the largest positive integer \(n\), that is not a multiple of 10, such that
\[ \Large \left \lfloor \frac{n^2}{100}\right \rfloor \]
is a perfect square?
Notation: \( \lfloor \cdot \rfloor \) denotes the floor function.
by
Sathvik Acharya