Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 513: | \[{7^{513}-1\over6}\] | 33 × 192 × 37 × 109 × 419 × 811 × 1063 × 2377 × 19609 × 2583253 × 18684829 × 879399649 × 4534166740403<13> × 9674698906207<13> × 6957533874046531<16> × 175336938770236118176950803989<30> × 20950796568979473968007757376297858917<38> × 123141456524016453213020222925447103111<39> × 586570628867364296441543447106691327380847<42> × 2512812754668906952015399354262229458071705977378150558713136895494249364098146403596227173680312805256541697922737886206750260073333354066203309571251133785635367872155405464741732363971535818050427<199> |