Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 979: | \[2^{979}-1\] | 23 × 892 × 13815649 × 7883576248112389199<19> × 618970019642690137449562111<27> × 416000380860322291505417438085197601650969965860973967728307545846416890262565076949514683072989335355820641121013103801109157846399226270733534090793156923301008744382063529864695629618145272362004158142827453334762538688587167921839449<237> |