Erdős problem 723 · problems.science

If there is a finite projective plane of order $n$ then must $n$ be a prime power?

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Technical detailsExact roots, source, and retained record identifiers

Problem row: sha256:32b872ab059fcdf8828a5cc43d2d9c13c1c8ba57cebb81e7809a6387b99b8fbb
Metadata: sha256:477f3bf71b48d3367cf2b2992f5fa5ddbd69e0047daa4cbf0c629693217a59e6
Observation: sha256:8c823d621b7e1256c8e47c60a5f1c54c016a5507e6f27b2bab537f6f5f232067
Content: sha256:e54a689f6660cd3dc3348a7de05ac4a72068682d884b126e81bb8f25d935de38

Repository: sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
Projection: sha256:c9d14c459c518937e758918b5897dc3b22f1a55f07739afe99502f5b046c907a
Source commit: 2415f78e850aeee50afdca525c6f2e0ea606f207