Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 392: | \[{31^{392}-1\over30}\] | 27 × 13 × 29 × 37 × 113 × 197 × 409 × 1129 × 6959 × 7253 × 11971 × 13469 × 29401 × 71821 × 946681 × 277739477 × 917087137 × 2932755253 × 50762136041<11> × 36004683284137<14> × 152490484148901066281<21> × 37737969050722454420873<23> × 147882001432537751112306358052999119715341090542830827<54> × 62322419393153627851729037464684263699383389269055382039663<59> × 846939789004011922249102366940609175992804153432276453614279263965755289614034873<81> × 954808014877039405017287755911497748860292974312971759625295277565691681794626793643308981355316791668178984959347667992013<123> × 783479887315483689221046177353898434613435399704386671877304209855259435862500694881109150359322202192733381535054635296861769<126> |