Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 109: | \[{5^{109}-1\over4}\] | 1091 × 1007161 × 1528399 × 2293559892404294400692399012979688850301546383400890423075969<61> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 109: | \[{5^{109}-1\over4}\] | 1091 × 1007161 × 1528399 × 2293559892404294400692399012979688850301546383400890423075969<61> |