Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 931: | \[2^{931}-1\] | 127 × 14897 × 67033 × 524287 × 4432676798593<13> × 4768748142197177447<19> × 163537220852725398851434325720959<33> × 78972995811637906093178745779924459870712173179818005292972009971283417861446119624814668948934213931984978819766986607321903664700433710451700696380890512015531612647797565422792691035241392682418527<200> |