Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 805: | \[2^{805}-1\] | 31 × 47 × 71 × 127 × 1289 × 14951 × 122921 × 178481 × 3188767 × 4036961 × 13816619111<11> × 45076044553<11> × 2646507710984041<16> × 14808607715315782481<20> × 368807221314046570921624935038049174011736160751<48> × 331491135967206244657979810427039630258881338881381693422837956185559180298159560378704962315457020551<102> |