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Problem
erdos:398
sorry ↔ {n | ∃ m, n.factorial + 1 = m ^ 2} = {4, 5, 7}
Open Current State
Declared status
falsifiable
Formalization
formalized
Subjects
number theory
·
factorials
OEIS
A146968 · A141399
Sources
source:erdos-problems
·
source:formal-conjectures
Statement
www.erdosproblems.com
Brocard-Ramanujan conjecture
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