Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 390: | \[{17^{390}-1\over16}\] | 2 × 33 × 7 × 11 × 132 × 31 × 53 × 71 × 79 × 101 × 131 × 157 × 307 × 1249 × 2731 × 53171 × 65651 × 88741 × 212057 × 2001793 × 9882731 × 238212511 × 421168021 × 2919196853 × 6566760001<10> × 356308015831<12> × 432351737611<12> × 585892325071<12> × 1753357523191<13> × 1837708051687<13> × 12042786858259<14> × 42774218980741<14> × 222177724492524061<18> × 3729060795347156491<19> × 346638477380024845861<21> × 2035325753852213746064248693<28> × 6903895304061385726585253701<28> × 50529920121845997508355717618101<32> × 256543213498592579101758761102741785511<39> × 16441920888963284586635082238167263987157439567861<50> × 10332926317754911110226153827704511585303029885034649351574645821<65> |