Congruence Classes of Supporting the Erdös-Straus Conjecture I: Tame Solutions

Xiaoping Xu

In 1948, Erdös and Straus formulated a conjecture : for any positive integer $n>2$, there exist positive integers $n_1,n_2$ and $n_3$ such that \begin{equation}\frac{4}{n}=\frac{1…