Erdős problem 1003 · problems.science

Are there infinitely many solutions to $\phi(n) = \phi(n+1)$ , where $\phi$ is the Euler totient function?

Result history

Published changes, performers, checks, and later corrections.

No result history yet

No proposed change is retained for this Problem, so there is nothing to show a decision on.

No correction history

Technical detailsExact roots, source, and retained record identifiers

Problem row: sha256:d034aaef0e6643f0198c74a823a53d771b9df7406e767231a5da4337627450f6
Metadata: sha256:b41a44827ad461f9bf986b20fd4c4affae6a2603c2af9c16d164998eb3426440
Observation: sha256:8c823d621b7e1256c8e47c60a5f1c54c016a5507e6f27b2bab537f6f5f232067
Content: sha256:474d0e6d75c6c25f6d7b0cacff8afcd0edad1cb17a9f4879d3b315fdda71c679

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