Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 467: | \[2^{467}-1\] | 121606801 × 1148984537885906196977362003686090739460725564747973734847<58> × 2727318928892040009397199815225412029789790574177544409019502626344207905841<76> |