Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 610: | \[{8^{610}-1\over7}\] | 32 × 11 × 31 × 151 × 331 × 367 × 1831 × 2441 × 4271 × 55633 × 270841 × 331841 × 360511 × 19895761 × 3015049441 × 288842216366491<15> × 484074637694471<15> × 768614336404564651<18> × 2305843009213693951<19> × 31347559232075126851<20> × 37201708625305146303973352041<29> × 95805951836468022966692945378791<32> × 8013930086014783164580302226587271<34> × 1772303994379887829769795077302561451<37> × 68207639734963563361372213456131836731<38> × 364371848053973128400380293624417256758401<42> × 247054336699552168887961800292921715571154497761<48> × 19120725947222519095879164245102731413110415053568518849342625278699572681<74> × 2042966318301153287973020504841858474796356713386502637438127027907217645931<76> |