Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 574: | \[2^{574}-1\] | 3 × 43 × 83 × 127 × 1723 × 13367 × 164511353 × 8831418697<10> × 17137716527<11> × 84413238703660609<17> × 4336790831080504259<19> × 4169136946773000713270790657459827<34> × 51954390877748655744256192963206220919272895548843817842228913<62> |