Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 605: | \[{8^{605}-1\over7}\] | 23 × 31 × 89 × 151 × 727 × 881 × 3191 × 3631 × 8713 × 201961 × 599479 × 842161 × 7593961 × 39280231 × 75824014993<11> × 81325666951<11> × 143448045841<12> × 9016552104770761<16> × 23741694115952458801<20> × 2048568835297380486760231<25> × 1786393878363164227858270210279<31> × 335694389427634954071771421573041823051433281<45> × 5448351236315742026827470749290138552538510376598571254569437566703575251869691806410089694456327608528590739813981151<118> × 14004232085081978926505335781522227659567907482336802063699714949328255922860644789546398125019171179376054330644111766712453125384034004177592829102465536112776854482530658809808100756859597058343259141321<206> |