Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 383: | \[{8^{383}-1\over7}\] | 1440847 × 7435494593<10> × 2651552381122661167<19> × 503823044204581129045587727<27> × 12917254515820483569633735619111<32> × 15174923558680812616818436353130417<35> × 240522700235167893496900256599634325263<39> × 3059193142733115700517893258221831955712786428901514318152437783<64> × 529177431125391994148263290261603233036440186765307693329223031642369744376227406772905506829347436427584326665215609<117> |