Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 470: | \[{8^{470}-1\over7}\] | 32 × 11 × 31 × 151 × 283 × 331 × 2351 × 4513 × 29611 × 1681003 × 2708611 × 13264529 × 2391314881 × 4375578271<10> × 35273039401<11> × 72296287361<11> × 111349165273<12> × 165768537521<12> × 328006342451<12> × 3059396467891<13> × 6830705352239611<16> × 461797907949997211<18> × 646675035253258729<18> × 157925605323676378629391<24> × 421803155659906892289931<24> × 667295426465706396181651<24> × 985646939783717901699571<24> × 235457374510092115086834691<27> × 73202300395158005845473537146974751<35> × 6454295903181807686705031076998087633227206653740016465477084416462036051174980671394921<88> |