Definition: Perfect Square
A perfect square is a natural number with a factorization $n=\prod_{i=1}^r p_i^{e_i},$ in which all exponents $e_i$ are even.
Thank you to the contributors under CC BY-SA 4.0! 
- Github:
-
References
Bibliography
- Scheid Harald: "Zahlentheorie", Spektrum Akademischer Verlag, 2003, 3rd Edition
