Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 323: | \[{3^{323}-1\over2}\] | 647 × 1597 × 1871 × 34511 × 363889 × 1600789 × 39039719 × 29134285181591<14> × 145774205091243248788288698285520297797062666607670976770953618247557290711362071955053996647333431708403483<108> |