Base 4 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 785: | \[{4^{785}-1\over3}\] | 11 × 31 × 1571 × 15073 × 25121 × 2350291 × 852133201 × 5393364481<10> × 6412853401<10> × 60726444167<11> × 1654058017289<13> × 2134387368610417<16> × 17751783757817897<17> × 96833299198971305921<20> × 135732250385154376731523201<27> × 2167731870412324810536209829271<31> × 14488318273595902692706536553684238317387680182551817911<56> × 1562820942454546438822308723273417441432511888067448106456773691471<67> × 400110705150808688646519277650253912972686507528338063436895455810627438321841258797863487473334350657576883638644344755769515400985034033874002349586770686109939921555721<171> |