Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 120: | \[{19^{120}-1\over18}\] | 24 × 3 × 52 × 73 × 11 × 132 × 17 × 31 × 41 × 61 × 127 × 151 × 181 × 211 × 271 × 769 × 911 × 2251 × 3833 × 4297 × 1081291 × 2460181 × 3952393 × 171434401 × 478382041 × 14706033761<11> × 16936647121<11> × 1687178375041<13> × 83199087472571360789685166938018099401281<41> |