Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
48: | \[{17^{48}-1\over16}\] | 24 × 33 × 5 × 7 × 13 × 29 × 73 × 307 × 1321 × 18913 × 41761 × 72337 × 83233 × 184417 × 48661191868691111041<20> |