Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 67: | \[{15^{67}-1\over14}\] | 4954919 × 2628501058611905652954840361379<31> × 34454155184954549865168924228785385728941<41> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 67: | \[{15^{67}-1\over14}\] | 4954919 × 2628501058611905652954840361379<31> × 34454155184954549865168924228785385728941<41> |