Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 318: | \[{3^{318}-1\over2}\] | 22 × 7 × 13 × 107 × 24169 × 48973 × 78719947 × 712550912937217<15> × 61557605176233223<17> × 3747607031112307667<19> × 395794533062864139307<21> × 2769035095381770614187391<25> × 40559607827224525043263763418498193<35> |