Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 452: | \[{8^{452}-1\over7}\] | 32 × 5 × 13 × 227 × 2713 × 3391 × 23279 × 48817 × 58309 × 65993 × 156619 × 1868569 × 2362153 × 10113049 × 28448881 × 636190001 × 972239797 × 6541323708817<13> × 1066818132868207<16> × 491003369344660409<18> × 15079116213901326178369<23> × 320021624768405574452943847<27> × 4760137992283599860814226997712217<34> × 10384593717069655112945804582584321<35> × 6076641073580952475695104794440298557698483213644441<52> × 8067670082858802084066104063317410636310881590473931569<55> × 8532224489137138306160059160077540585447813491609487653073<58> |