Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 124: | \[{31^{124}-1\over30}\] | 26 × 13 × 37 × 373 × 1613 × 62869 × 145577 × 415153 × 35789156484227<14> × 2706690202468649<16> × 568972471024107865287021434301977158534824481<45> × 729527663868489818869443753655962819807690366535991304169573580552940020358902345617<84> |