Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 518: | \[{8^{518}-1\over7}\] | 32 × 7 × 43 × 127 × 223 × 337 × 1777 × 3331 × 4663 × 5419 × 17539 × 321679 × 6433561 × 25781083 × 26295457 × 319020217 × 616318177 × 2499285769 × 107775231312019<15> × 4750535347861726648681<22> × 96786396648673403672115546439<29> × 1456235596904319041738812533139<31> × 107636344217840413139193500838915409<36> × 21234370960880098806027750185552713706866970578963970119<56> × 1396099655816209040897082635430814457429299016552082514363486485025543<70> × 8382989531058490246120661061538332451211140832526561654945945880363580280577556477585808586306843003684634463079155502865075667331<130> |