Number theoryDifficulty 1.0Find the answerUKMT Senior Mathematical Challenge · United Kingdom · 2021
Alitta claims that if p is an odd prime then p2−2 is also an odd prime. Which of the following values of p is a counterexample to this claim?
(A) 3 (B) 5 (C) 7 (D) 9 (E) 11
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