Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 104: | \[{17^{104}-1\over16}\] | 23 × 32 × 5 × 29 × 53 × 79 × 41761 × 65651 × 212057 × 2001793 × 19825313 × 62507849 × 1224199237 × 2919196853 × 558796871153<12> × 13938043025453<14> × 1175496327058885417<19> × 2806294401208342088929<22> |