theorem
proved
term proof
isolated_prime_onehundredthirtyone
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formal statement (Lean)
2871theorem isolated_prime_onehundredthirtyone : Prime 131 ∧ ¬Prime 129 ∧ ¬Prime 133 := by native_decide
proof body
Term-mode proof.
2872
2873/-- 157 is an isolated prime: 155 = 5 × 31, 159 = 3 × 53. -/