Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
195: | \[{3^{195}-1\over2}\] | 112 × 132 × 131 × 313 × 2341 × 4561 × 6553 × 7333 × 797161 × 3701101 × 39838501 × 110133112994711<15> × 98139929939748977208994554331725481<35> |