Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 386: | \[{8^{386}-1\over7}\] | 32 × 6563 × 60217 × 92641 × 1036411 × 3497161 × 13821503 × 35679139 × 769643857 × 1871670769 × 7455099975844049<16> × 313705683072406514521<21> × 1280761337388845898643<22> × 61654440233248340616559<23> × 187030532513381403767944747<27> × 14732265321145317331353282383<29> × 57539008978220065870296061153652147227<38> × 22515432112225416692730880057224922174331279583123112381686532545779094349645216289214782907481695324873634290036151<116> |