Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
587: | \[2^{587}-1\] | 554129 × 2926783 × 39483330766889<14> × 73208283304744901303<20> × 3728298863422039632638351<25> × 28981531265700436474908668605764037292283479533071482196860868875487797459833848867410473799526014756969233<107> |