Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 297: | \[{28^{297}-1\over27}\] | 33 × 192 × 199 × 271 × 541 × 1783 × 5347 × 262351 × 444979 × 6077039 × 50545507 × 4376814093829<13> × 68948693997660959163751<23> × 425141076149786955572181811<27> × 588059502384167741754689230237055517031269700136285805215376626148451<69> × [32298630961104963974161528669002461088695455646232644036997049213019351361168629012986253870213023809023319105849129201821891481471794115198719939527797060321871577844816405138985309819730472575394966532710490340154558608565420046394044026873891908316109<254>] |