József Sándor and Edith Egri
Notes on Number Theory and Discrete Mathematics
Print ISSN 1310–5132, Online ISSN 2367–8275
Volume 22, 2016, Number 3, Pages 90—91
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Authors and affiliations
József Sándor 
Babeș–Bolyai University
Cluj–Napoca, Romania
Edith Egri
Babeș–Bolyai University
Cluj–Napoca, Romania
Abstract
We offer a new proof of the classical fact that √N is irrational, when N is not a perfect square.
Keywords
- Perfect square
- Irrationality of square roots
AMS Classification
- 11A05
- 11J72
References
- Ross, M. (2004) Irrational thoughts, Math. Gazette, March, 2004, pp. 68–78.
- Aigner, M., & Ziegler, M. G. (2014) Proofs from the Book, Fifth ed., Springer-Verlag Berlin Heidelberg.
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Cite this paper
Sándor, J. & Egri, E. (2016). On the irrationality of √N, Notes on Number Theory and Discrete Mathematics, 22(3), 90-91.
