Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 468: | \[{28^{468}-1\over27}\] | 32 × 5 × 132 × 192 × 29 × 37 × 53 × 79 × 127 × 157 × 271 × 547 × 757 × 1483 × 1873 × 1951 × 2237 × 2341 × 24481 × 47221 × 50221 × 102547 × 114661 × 284467 × 444979 × 1598039 × 188878213 × 219386077 × 360548139979<12> × 78296083533149<14> × 1672698885245389<16> × 4543753614603737<16> × 81923931656777716741<20> × 362421235545671159911<21> × 687858517721621226917<21> × 762785777749991012317<21> × 2441437589227959094240729<25> × 2485157691702736928051924257<28> × 178135134528413184980284396604535851624652223234840956388261926510811<69> × 223973040275351425605924258724941512719278605840074110596359524399637<69> × 258682253680734436708650439293188588376508660900129983784478038452979<69> × [7352156384130075238557433031964390906967635213485306872544053753783940180719129962934460581216826681249360780365239410442726593838777977474676338293497316348548888377390228706932161<181>] |