Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 149: | \[2^{149}-1\] | 86656268566282183151<20> × 8235109336690846723986161<25> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 149: | \[2^{149}-1\] | 86656268566282183151<20> × 8235109336690846723986161<25> |