Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 54: | \[{7^{54}-1\over6}\] | 23 × 33 × 19 × 37 × 43 × 109 × 811 × 1063 × 2377 × 117307 × 2583253 × 1628413557556843<16> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 54: | \[{7^{54}-1\over6}\] | 23 × 33 × 19 × 37 × 43 × 109 × 811 × 1063 × 2377 × 117307 × 2583253 × 1628413557556843<16> |