Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
58: | \[{17^{58}-1\over16}\] | 2 × 32 × 59 × 349 × 7193 × 23549 × 2919779 × 6088087 × 18032534719<11> × 61878754061<11> × 11658852700685942029849<23> |