The board / number theory / #411
Erdős Problem #411
partial r=2 result
OPENdatabase updated 2025-08-31
No proof or disproof is known, and it isn't known whether a finite computation could settle it.
What the community database records, not our verdict. erdosproblems.com no longer shows statuses (why).
Prizenone
Topicsnumber theory, iterated functions
Statement in Leannot yet
Solution in Leanno
OEISA383044
Original pageerdosproblems.com/411
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The literal live statement has explicit infinite transient families outside the page's conjectured odd-part list, including every \(2^a3^b\) with \(a,b\geq1\); the exact basin/cycle reduction and a \(
FOUND