Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 76: | \[{7^{76}-1\over6}\] | 24 × 52 × 419 × 351121 × 4058036683 × 4534166740403<13> × 2598696228942460402343442913969<31> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 76: | \[{7^{76}-1\over6}\] | 24 × 52 × 419 × 351121 × 4058036683 × 4534166740403<13> × 2598696228942460402343442913969<31> |