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Source: OMEC Ecuador National Olympiad Final Round 2022 N3 P6 day 2

November 4, 2024
number theoryprimesnational olympiad

Problem Statement

Prove that for all prime p≥5p \ge 5, there exist an odd prime q≠pq \not= p such that qq divides (p−1)p+1(p-1)^p + 1
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