Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
144: | \[{3^{144}-1\over2}\] | 25 × 5 × 7 × 13 × 17 × 19 × 37 × 41 × 73 × 97 × 193 × 577 × 757 × 769 × 6481 × 530713 × 1418632417 × 282429005041<12> × 56227703611393<14> |