Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 827: | \[2^{827}-1\] | 66161 × 1637241673 × 1656489332706171370072190422631<31> × 2550707823005230793212015514781257<34> × 13394595223843413901037846777300844745495137348727969920754613220161097793251799<80> × 145986471351995281114748849644203678988470587636054170861652120292479900430176816158187653823<93> |