Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 297: | \[{3^{297}-1\over2}\] | 13 × 23 × 109 × 433 × 757 × 3851 × 8209 × 3186217 × 1182737161 × 2413941289 × 7899901813<10> × 370231459035769<15> × 12812432238302009985937<23> × 22020163035726259944973163958989823798317763239269477<53> |