Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 392: | \[{5^{392}-1\over4}\] | 23 × 3 × 13 × 29 × 197 × 313 × 449 × 19531 × 19993 × 49105547 × 234750601 × 1866013003 × 2333311009 × 2481357870461<13> × 38811185416697<14> × 164204573839769<15> × 59509429687890001<17> × 74535675530760254357<20> × 21441970593484574539001<23> × 227376585863531112677002031251<30> × 1476227273305643921846650230577763857080191997906995442200755205808187780477708230044943809<91> |