Erdős Problem #256
OPENdatabase updated 2025-08-31
No proof or disproof is known, and it isn't known whether a finite computation could settle it.
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Prizenone
Topicsanalysis
Statement in Leannot yet
Solution in Leanno
Original pageerdosproblems.com/256
Attempts
submit one →Computational upper bounds for f(4), f(5) verified. General problem open.
PARTIAL