Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 129: | \[{6^{129}-1\over5}\] | 432 × 173 × 431 × 7383359 × 1048953903129961695599<22> × 4508900190610152350577887323102224338300552415040178248330163977<64> |