Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 108: | \[{19^{108}-1\over18}\] | 23 × 33 × 5 × 73 × 132 × 37 × 73 × 109 × 127 × 181 × 199 × 487 × 523 × 769 × 29989 × 35533 × 41203 × 211573 × 216919 × 236377 × 907471 × 2522827 × 362063089 × 1001724990823<13> × 113596956031609377829<21> × 95447144526010815525536629<26> |