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http://dx.doi.org/10.4134/BKMS.2015.52.2.513

ON THE EQUATION 𝜙(5m - 1) = 5n - 1  

Faye, Bernadette (AIMS-Senegal Km 2 route de Joal (Centre IRD Mbour))
Luca, Florian (School of Mathematics University of the Witwatersrand)
Tall, Amadou (AIMS-Senegal Km 2 route de Joal (Centre IRD Mbour))
Publication Information
Bulletin of the Korean Mathematical Society / v.52, no.2, 2015 , pp. 513-524 More about this Journal
Abstract
Here, we show that the title equation has no positive integer solutions (m, n), where ${\phi}$ is the Euler function.
Keywords
Diophantine equations; applications of primitive divisors; applications of sieve methods;
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