Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 559: | \[{9^{559}-1\over8}\] | 431 × 5591 × 6709 × 398581 × 797161 × 363424907 × 2858823573451<13> × 246489783634693<15> × 380808546861411923<18> × 2335335318506881393<19> × 82064241848634269407<20> × 481462259966792434510742876635621<33> × 547743001660321354161077319158425694627<39> × 5564687761959436217109524353035918465205794740817325357931<58> × 1143902877494188706544905961956243564640222505588915751880389572381<67> × 32547051367417634456412793828318259256466968341396936775467063340545648248519221255727<86> × 6290628629204651727560877821047607741253093425871024205306442883795186754920711156298165875135679686867762797735398563421670806275641388457<139> |