Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 567: | \[2^{567}-1\] | 72 × 73 × 127 × 337 × 2593 × 71119 × 92737 × 262657 × 649657 × 1560007 × 97685839 × 207617485544258392970753527<27> × 34175792320105064276509600649933535697253970335472049142780400956425111741139140798213387072831489<98> |