Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 317: | \[{7^{317}-1\over6}\] | 240287 × 1507019 × 32815841 × 22918346757630316344596090121007369869273875683<47> × 399676211948778347375576150888294069325575626336229<51> × 12053226165224706723291870523386356337014362488889395108908125817650943197105205684367386130709217130808115546544960763311701697470763822525360872732291<152> |