Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 122: | \[{31^{122}-1\over30}\] | 25 × 977 × 14519 × 50848444051<11> × 12712081567468100953<20> × 60290903116166148697<20> × 13578586277937589671409<23> × 2458422198511222771859601111973397<34> × 4986168979530543442200031132013850702682116109677075729786350050229<67> |