Fermat's Little Theorem and Euler's Theorem in a class of rings

Fernanda D. de Melo Hernandez, César A. Hernández Melo, Horacio Tapia-Recillas

Considering ${\mathbb{Z}}_n$ the ring of integers modulo $n$, the classical Fermat-Euler theorem establishes the existence of a specific natural number $\phi (n)$ satisfying the followin…