Nat.prime_of_pow_sub_one_prime

∀ {a n : ℕ}, n ≠ 1 → Nat.Prime (a ^ n - 1) → a = 2 ∧ Nat.Prime n

Prime a ^ n - 1 implies a = 2 and prime n.

Defined in: Mathlib.NumberTheory.Fermat
Cited by: 1 results in Mathlib
Foundations: Depth 86 from the axioms · uses propext, Classical.choice, Quot.sound

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