Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 267: | \[{31^{267}-1\over30}\] | 3 × 179 × 331 × 306517 × 1476511 × 38434030117601039953<20> × 194382021317865834077<21> × 1895009826287880923167<22> × 1843793240833772195527188715497235054748361154878687143137366939289518721748165239<82> × [2478915720144417814762802343110542801848129884907724480904940673694562346264542475858279567217173828592020716019741484865540140742245881124925308101721101848118580198393085672777476917027934469459518906260817067912287579972779097427964141<238>] |