Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 943: | \[2^{943}-1\] | 47 × 9431 × 13367 × 39607 × 178481 × 21698431 × 62209711 × 164511353 × 138325941036565103<18> × 9280993516297855054039457<25> × 57644473457648767005697802783<29> × 108017532617736915133406584684682016398182243100347598313436462729073911856247557922662614974708675029796424611721425364738654561651249349759454300640753645387500306111631<171> |