Skip to content

Erdős problem 18

Conjecture 1. Are there infinitely many practical numbers mm such that h(m)<(log⁡log⁡m)O(1)h(m) < (\log \log m)^{O(1)}?

Sources

The source's own material, retained exactly.

11 retained statements36c6d0fef71a

Open selected source

FormalConjectures/ErdosProblems/

18.lean

Retained formal statement1 of 11

Erdős's Theorem. Erdős proved that h(n!)<nh(n!) < n for all n≥1n \ge 1.

FormalConjectures/ErdosProblems/18.leanErdos18.erdos_18_upper_bound1 lineExact file
∀ᶠ (n : ℕ) in Filter.atTop, Erdos18.practicalH n.factorial < n
SolvedStatement only, no proof