Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 48: | \[{7^{48}-1\over6}\] | 26 × 3 × 52 × 13 × 17 × 19 × 43 × 73 × 181 × 193 × 409 × 1201 × 169553 × 33232924804801<14> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 48: | \[{7^{48}-1\over6}\] | 26 × 3 × 52 × 13 × 17 × 19 × 43 × 73 × 181 × 193 × 409 × 1201 × 169553 × 33232924804801<14> |