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MathNet 2024-part-03 — 168 problems (EN–VI) Question 74

Math Olympiad Vault · MathNet 2024-part-03 — 168 problems (EN–VI)

Question 74

Positive integers such that all the digits are prime numbers are called excellent numbers. Determine all the three-digit positive integers $n$ such that $n + 2024$ and $n - 34$ are both excellent numbers. There exist exactly two such positive integers $n$.