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MathNet 2024-part-01 — 168 problems (EN–VI) Question 114

Math Olympiad Vault · MathNet 2024-part-01 — 168 problems (EN–VI)

Question 114

We will call a natural number $m$ remarkable if there exist integers $a$, $b$, $c$, for which $m = a^3 + 2b^3 + 4c^3 - 6abc$. Prove that there exists a natural number $n \lt 2024$ such that for infinitely many prime numbers $p$, the number $np$ is remarkable.