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MathNet 2017-part-06 — 176 problems (EN–VI) Question 104

Math Olympiad Vault · MathNet 2017-part-06 — 176 problems (EN–VI)

Question 104

Let $n$ be a natural number and $p, q$ primes such that the following statements hold:
$$
\begin{gathered}
p q \mid n^{p}+2 \\
n+2 \mid n^{p}+q^{p}
\end{gathered}
$$

Show that there exists a natural number $m$ such that $q \mid 4^{m} n+2$.