Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 871: | \[2^{871}-1\] | 8191 × 15679 × 95860519 × 193707721 × 761838257287<12> × 12708237958354187384010097<26> × 791926693391795441127294795391450663<36> × 137403482726882442386895575645854007713<39> × 6266909033486349145236251830018206078737744299061051815412019896976704558419841975840406610944103583171294531372305770361260097<127> |