Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 431: | \[{16^{431}-1\over15}\] | 863 × 3449 × 91373 × 3754873 × 36238481 × 76859369 × 558062249 × 4642152737<10> × 1807447391779<13> × 12895071553121<14> × 37452571239931<14> × 10964641584403141057<20> × 142850312799017452169<21> × 293570168705494995003808680954965317<36> × 5021212857211460545431575720246662915704947247012537535229103913<64> × 1807482391092819529831423005040763105191863029850140579776353298087457<70> × 27306093454857278136151466787158724903415193508113091644798914026250805107043994199261467851009282903867<104> × 86007113111357473918849174400781452668227801835871756798312303997985825885413402298430685280299026254175553025557997<116> |