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MathNet 2024-part-04 — 168 problems (EN–VI) Question 58

Math Olympiad Vault · MathNet 2024-part-04 — 168 problems (EN–VI)

Question 58

Determine all positive integers $n$ less than $2024$ such that for all positive integers $x$, the greatest common divisor of $9x + 1$ and $nx + 1$ is $1$.