Primesmedium
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A Wieferich prime p satisfies p² | 2^(p-1) - 1. Which of these is a known Wieferich prime?
A Wieferich prime p satisfies p² | 2^(p-1) - 1. Which of these is a known Wieferich prime?
A Wieferich prime p satisfies p² | 2^(p-1) - 1. Which of these is a known Wieferich prime?