Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 153: | \[{19^{153}-1\over18}\] | 32 × 103 × 127 × 307 × 523 × 613 × 29989 × 3044803 × 54474019 × 130322440063<12> × 99995282631947<14> × 74657245773488638417876963<26> × 4418381040110305273793034280251963666449849147209917489472542989609934051074197445662148986125717577069143478207<112> |