Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 758: | \[2^{758}-1\] | 3 × 180818808679<12> × 15012732261073<14> × 728040923721821697586308784409<30> × 37551870149160225933510841998425767070380445542467219009673638189257459<71> × 6809649408891001685768937590233308625949604176033855796938978177320539702698633946720428389517879894953<103> |