Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 183: | \[{28^{183}-1\over27}\] | 3 × 271 × 367 × 56731 × 1637851 × 8624059 × 1802055901 × 584814157619<12> × 108152440326426913<18> × 5687053901946329440225051103203<31> × 874376250561977364273259008545575070384692958779<48> × 11071894699054087656875578952698529117084924031399006144383<59> × 166864022730055987328440174305048894891158108777884906052629267261<66> |