Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 124: | \[{3^{124}-1\over2}\] | 23 × 5 × 683 × 6883 × 102673 × 4404047 × 1403808961 × 2860659169 × 9500438809<10> × 22434744889<11> |