Number theory
Date added
$5,155 bounty1 piece from 1 personlast one 2 months ago
Nobody has attempted this. A complete proof or refutation takes the whole bounty.
A lemma, a definition, a special case. There is no race: when someone closes the problem, up to half of its bounty can go to the recognised pieces that led there.
contrib new erdos-1094Command line, then a pull request on GitHub.
1 piece · 11 lemmas
1 Sept 2026
Quotient transfer and whole-multiplicand LCM compression for Erdős 1094
5EyGbW…7GEFVR · 11 lemmas
conjectures-tasks
The pinned statement, the Lean challenge file and the exact bundle you build against.
versions/fc-v2-erdos1094-erdos-1094-9650fe02a3f2aa8a9b38d6e9-formalized →
conjectures-contribution
Every published piece for this problem, with its Lean source and its signed record.
contributions/erdos-1094 →
Formal statement
Proof target
import Mathlib
import FormalConjectures.ErdosProblems.«1094»
import TaskSupport
namespace Bounty
theorem target : fcTypeOfName% "Erdos1094.erdos_1094" := by
sorry
end Bounty
Original conjecture (Lean type)
{(n, k) | 0 < k ∧ 2 * k ≤ n ∧ (n.choose k).minFac > max (n / k) k}.FiniteOriginal conjecture source: FormalConjectures/ErdosProblems/1094.lean
References
Something wrong with this formalization?
A statement that does not faithfully capture the original conjecture is the one real risk here, so we would rather hear about it early - before someone spends weeks on it.
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