Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 170: | \[2^{170}-1\] | 3 × 11 × 31 × 43691 × 131071 × 9520972806333758431<19> × 26831423036065352611<20> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 170: | \[2^{170}-1\] | 3 × 11 × 31 × 43691 × 131071 × 9520972806333758431<19> × 26831423036065352611<20> |