Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 879: | \[{4^{879}-1\over3}\] | 3 × 7 × 587 × 1759 × 26371 × 33403 × 42193 × 288313 × 142891999 × 4010077111 × 12760970401<11> × 4703954662078801<16> × 40122362455616221971122353<26> × 94031095460270951212691599<26> × 13453890779540632945331892129844577<35> × 762551893101410166019390283047520363896913<42> × 396645227028138890415611220710757921643910743103031701971222447<63> × 22058216476354148174340292661422016859535838566235695959824441565750734320744258662775535748560023<98> × 2000855837923028645177751297799150906516677343632363378380304548456906426098236136976939135025314728005241521642678374653211943375546399670401955837675112165862433212556987<172> |