Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 274: | \[{28^{274}-1\over27}\] | 29 × 823 × 1739404883 × 17307984225361<14> × 19583627794844159<17> × 179007827745279405349<21> × 808124617464954587015149218600004561<36> × 37284618416750132520337321551009840187507110341<47> × 74410001742825162250658694810305503736932965362080615888398075537133799297578299856320923987<92> × 21781475298208391547889155175576525071734064753732947911172431916058320484960824892629031730478136342290279436905520946868731449463515411744899783563534478537<158> |