Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 207: | \[2^{207}-1\] | 7 × 47 × 73 × 79903 × 178481 × 634569679 × 2232578641663<13> × 10052678938039<14> × 42166482463639<14> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 207: | \[2^{207}-1\] | 7 × 47 × 73 × 79903 × 178481 × 634569679 × 2232578641663<13> × 10052678938039<14> × 42166482463639<14> |