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Erdős problem 137

Let k≥3k\geq 3. Can the product of any kk consecutive integers NN ever be powerful? That is, must there always exist a prime p∣Np\mid N such that p2∤Np^2\nmid N?

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3 retained statements36c6d0fef71a

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FormalConjectures/ErdosProblems/

137.lean

Retained formal statement1 of 3

Let k≥3k\geq 3. Can the product of any kk consecutive integers NN ever be powerful? That is, must there always exist a prime p∣Np\mid N such that p2∤Np^2\nmid N?

FormalConjectures/ErdosProblems/137.leanErdos137.erdos_1371 lineExact file
sorry ↔ ∀ k ≥ 3, ∀ (n : ℕ), ¬(∏ x ∈ Finset.Ioc n (n + k), x).Powerful
OpenStatement only, no proof