Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 245: | \[{19^{245}-1\over18}\] | 71 × 151 × 701 × 911 × 1471 × 70841 × 707561 × 167291881 × 51326794793<11> × 1680940976006321<16> × 65365284260571112024359304391<29> × 40030321143939714800754628767062621<35> × 59406262713432872236099181572519757<35> × 966689188651388775763273328717015651347971790864338300673006592568466166457818689897775040300024915537428127895863947010929101850523644010104598307199556851<156> |