Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 159: | \[{19^{159}-1\over18}\] | 3 × 107 × 127 × 1226209 × 87097657 × 4739153047<10> × 323930821687153<15> × 4086918000521042669809<22> × 2551089855701675251204783<25> × 37334173314913678536474517<26> × 4480114312426490346765956323940058045092900993585044625434355666103979771820419821782239<88> |