Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 107: | \[{6^{107}-1\over5}\] | 643 × 5044140393054571<16> × 11277573027736036722713586016689525331842510247329583574661742579<65> |