Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 175: | \[{31^{175}-1\over30}\] | 52 × 11 × 101 × 4951 × 17351 × 319061 × 13277801 × 161408801 × 203633641 × 917087137 × 20235942281002951<17> × 9240957640390889951861<22> × 33775584211871844736421714817378301699484684689901<50> × 91502426625510589592547533359706080563661406250335170247851<59> × 184264024441474386358438553752549849968905326483369584139740751<63> |