Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 235: | \[{31^{235}-1\over30}\] | 5 × 11 × 2351 × 3761 × 17351 × 3128573142495569<16> × 170942984502845969696543<24> × 1082624043200940747122321<25> × 2472895045864599104964917701<28> × 773892718948740289245597142031<30> × 1052136111423491460952378638536787503235709062805760782756506338570641716988473102018273303929449172555856207732145378240669565802373301767934647799709081719153339291321968034957589842973271865722975635199019988792131<217> |