Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 205: | \[{17^{205}-1\over16}\] | 83 × 6971 × 88741 × 892079 × 13365673 × 960217114820653<15> × 18469031047049514697<20> × 7985008404216375706608476671<28> × 429241393520762871732383067747952558241<39> × 205390833866334687422480038853339245694061242360793501229989241<63> × 14277286454573780659146130823566711300936603363158773847643164181<65> |