Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 498: | \[{19^{498}-1\over18}\] | 22 × 3 × 5 × 73 × 127 × 167 × 499 × 997 × 3980017 × 323222917 × 1129544677 × 141504832501<12> × 28615780547655601<17> × 1474004548222130824621<22> × 47696038788215881440253<23> × 98009102530803395339509<23> × 47883494048537559360801176718339175927<38> × 6012129958446774722064232116209828950999452137578480982215230732885763410548730919<82> × 4555750199199950437649290574576123158785621674690043100726048398827989978120480865989375363338094993243<103> × 3206544257246130052518879247025160409317689389510714512065022919699939637541213898339010149662493296551539<106> × 9897676768847357446193655892289823656918400104874292489260070901646233013337002770600139646684820670431350409126143941175794422892541689542568402398908829923598196122144132923<175> |