Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 340: | \[{3^{340}-1\over2}\] | 23 × 52 × 112 × 61 × 103 × 307 × 1021 × 1181 × 1531 × 1871 × 34511 × 224401 × 956353 × 7674481 × 1743831169 × 2663568851051<13> × 862970652262943171<18> × 13271362257832586268931<23> × 1706953634650967930299490233845839250457448201276787601<55> |