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Erdős problem 48

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Are there infinitely many integers n,mn, m such that ϕ(n)=σ(m)ϕ(n) = σ(m)?

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

Result history

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Technical detailsExact roots, source, and retained record identifiers

Exact provenance

Problem row
sha256:e3875dc60fee270f969d1114c69fac8210fa601fe5e750946d4a3ae072f1bf18
Metadata
sha256:91f32c01037ac2b1cfcb6f506c8288d4299f8118c030542b7953641ff9410ac3
Observation
sha256:9c8326e865b6017b103af7611c852a06776d81964979b8ab5a1b800cd550dff6
Content
sha256:81151bd35afd412f15c1a002d0cc4c88d924c2d0bf42ee9c96c14128090b611f
Repository
sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
Projection
sha256:a4a96441668a9f8b33afbcb3f696a2639f5fae145f36ddc063d7f67d5fb87ce8
Source commit
36c6d0fef71a3fec84d9dcd5eeca4e22e378f7cb
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