Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 336: | \[{15^{336}-1\over14}\] | 27 × 7 × 13 × 17 × 29 × 43 × 113 × 211 × 241 × 337 × 1489 × 2129 × 3169 × 3361 × 3877 × 7121 × 66529 × 179953 × 198017 × 327517 × 363217 × 723031 × 745249 × 1659649 × 1743463 × 10123513 × 10678711 × 191354311 × 1248882721 × 2562840001 × 12515552561<11> × 725177029417<12> × 766028506097<12> × 2817034275427<13> × 4454215139669<13> × 1038405709913713<16> × 21975395880100433<17> × 777453109529036081<18> × 15360796671433620373<20> × 5840270932038540650689<22> × 38602348691025427791666546447549336481<38> × 150740657420896759573477014840894505429686717838017357291605377501869584329729<78> |