All open problems
Source labels openChecked July 26, 2026

Erdős ProblemsNumber theory

Erdős Problem 1113: Filaseta Finch Kozek

Filaseta–Finch–Kozek conjecture (2008).* Every Sierpiński number is either a perfect power or possesses a finite covering set of primes.

Mathematical statement

Filaseta–Finch–Kozek conjecture (2008).* Every Sierpiński number is either a perfect power or possesses a finite covering set of primes.

Statement source: Erdős Problems statement material

Statement terms: Source-specific

Source-specific terms. Therefore does not assert reuse rights beyond attributed display.

Statement artifacts, not proofs

These records expose exact Lean propositions and statement-only wrappers. Defining a proposition does not supply a proof of it. A placeholder-bearing target also contains no proof. Elaboration checks syntax and types; it does not certify that a formalization perfectly captures every nuance of the informal problem.

Pinned Lean formulation 1

erdos_1113.variants.filaseta_finch_kozek

Canonical source
Complete statement target, proof intentionally absentLean 4
theorem erdos_1113.variants.filaseta_finch_kozek :     k, k.IsSierpinskiNumber       k.IsPerfectPower  HasFinitePrimeCoveringSet k := by  sorry
Statement source
Formal Conjectures
Lean version
v4.27.0
Placeholder
Present; no proof artifact
Source evidence
Pinned source index
Fidelity review
Community formulation

References