Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 239: | \[{9^{239}-1\over8}\] | 479 × 14341 × 17209 × 170647 × 42124768369936320790693<23> × 43301964055635533333945745533106128044213<41> × 1507825692437133671959981388935564985777556063472074560073441273431<67> × 2610383209387052372917864907227743488645273610593571994588261034578119490689610597<82> |