Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 217: | \[{31^{217}-1\over30}\] | 347201 × 1093681 × 68657933 × 917087137 × 5978703277<10> × 3430295651021<13> × 568972471024107865287021434301977158534824481<45> × [50438659882469286521873423260661478829750674232846202094954501417385712680857203009777830749122067069095766707925905647497170790038635069132037945242073874249478083703548963421850114724490076013582034419089943886167078125354861<227>] |