Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 539: | \[{8^{539}-1\over7}\] | 72 × 23 × 89 × 127 × 337 × 463 × 599479 × 4432676798593<13> × 91738088321881<14> × 5803274552068687<16> × 581283643249112959<18> × 2741672362528725535068727<25> × 3674821079672135098158774269257<31> × 234341789260493933662402728271919<33> × 4982397651178256151338302204762057<34> × 11464158678831419555307566061644085062421769697020398649986313091766942851904723145020010938191<95> × 3776968798033507761763394531144137475823452269721217486102469690756417027873220851862748779085134892134453387963237122914026663059427242565095267698122972713825870373689116823657589669737254799<193> |