Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 266: | \[{7^{266}-1\over6}\] | 23 × 29 × 113 × 419 × 911 × 4733 × 8513 × 351121 × 401563177 × 2662276961 × 4058036683 × 254997629797<12> × 265043186297<12> × 4534166740403<13> × 373740808373213<15> × 897558513407803666357<21> × 193935377097018854700131<24> × 44565794432124976145013684073215440137<38> × 190979732723665007281131026057624031257687<42> |