Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 111: | \[{17^{111}-1\over16}\] | 149 × 223 × 307 × 779221 × 1336663 × 1016919604559540581<19> × 6218882581209875638403<22> × 35350798796787001062972004050498687807511809746935623542363221441570438155787<77> |