Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 149: | \[{6^{149}-1\over5}\] | 38538553 × 1318713554713829548602512956686040272376450743377909<52> × 346354176050253827859677568458815390218235712359759067327<57> |