Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 56: | \[{6^{56}-1\over5}\] | 72 × 29 × 37 × 197 × 281 × 337 × 421 × 617 × 1297 × 55987 × 5030761 × 81035189089<11> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 56: | \[{6^{56}-1\over5}\] | 72 × 29 × 37 × 197 × 281 × 337 × 421 × 617 × 1297 × 55987 × 5030761 × 81035189089<11> |