Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 239: | \[{6^{239}-1\over5}\] | 479 × 555643125049<12> × 674693399227<12> × 2787187926109459<16> × 379992185439147785353707804930792958496594524876458259934509181516739990528221407872140038659705071234998548114282487893996521153390236024139573<144> |