Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 348: | \[{18^{348}-1\over17}\] | 52 × 73 × 13 × 19 × 59 × 229 × 233 × 307 × 349 × 457 × 4177 × 9049 × 23201 × 38281 × 83869 × 4976401 × 5860321 × 874663781 × 1505548068007783<16> × 5260668935161777<16> × 678538785553421893<18> × 98800490511312118297<20> × 49904091065414005320673<23> × 115643571587559007469672309<27> × 3687163849968995658130764979<28> × 20423794322970766662747461449<29> × 2255781524824231358697279947382689<34> × 23844678628322370113260816873780684279<38> × 3044721214917208176948835633566276451201<40> × 5649037833049239335457532279866048538153369<43> × 803392030034487127751184663942924382634997613<45> |