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Erdős problem 1003

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

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  1. Prior stateNone retained
  2. WorkNo submitted work retained
  3. VerificationNo check retained
  4. DecisionNo Repository has decided
  5. StandingNothing recorded here
  6. Next gapNot recorded

Result history

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Technical detailsExact roots, source, and retained record identifiers

Exact provenance

Problem row
sha256:d034aaef0e6643f0198c74a823a53d771b9df7406e767231a5da4337627450f6
Metadata
sha256:b41a44827ad461f9bf986b20fd4c4affae6a2603c2af9c16d164998eb3426440
Observation
sha256:9c8326e865b6017b103af7611c852a06776d81964979b8ab5a1b800cd550dff6
Content
sha256:474d0e6d75c6c25f6d7b0cacff8afcd0edad1cb17a9f4879d3b315fdda71c679
Repository
sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
Projection
sha256:a4a96441668a9f8b33afbcb3f696a2639f5fae145f36ddc063d7f67d5fb87ce8
Source commit
36c6d0fef71a3fec84d9dcd5eeca4e22e378f7cb