Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 94: | \[{31^{94}-1\over30}\] | 25 × 659 × 20681 × 322825141 × 3128573142495569<16> × 170942984502845969696543<24> × 773892718948740289245597142031<30> × 88191216508702589699784765539165129720664028300782169<53> |