Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 93: | \[{19^{93}-1\over18}\] | 3 × 127 × 37537033 × 5313524497<10> × 243270318891483838103593381595151809701<39> × 252322311240290935481740395615054925529652499675304653560001<60> |