Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 234: | \[{28^{234}-1\over27}\] | 32 × 192 × 29 × 37 × 53 × 79 × 127 × 271 × 547 × 757 × 1483 × 1951 × 2237 × 102547 × 114661 × 284467 × 444979 × 1598039 × 219386077 × 360548139979<12> × 1672698885245389<16> × 4543753614603737<16> × 81923931656777716741<20> × 362421235545671159911<21> × 2441437589227959094240729<25> × 2485157691702736928051924257<28> × 178135134528413184980284396604535851624652223234840956388261926510811<69> × 258682253680734436708650439293188588376508660900129983784478038452979<69> |