Maths Olympiad Prep

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Number theory Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

Alice wants to write down a list of prime numbers less than 100, using each of the digits 1, 2, 3, 4 and 5 once and no other digits. Which prime number must be in her list?

(A) 22 (B) 55 (C) 3131 (D) 4141 (E) 5353

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