Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 387: | \[{6^{387}-1\over5}\] | 19 × 432 × 173 × 431 × 2467 × 7383359 × 280763808312313<15> × 1048953903129961695599<22> × 4508900190610152350577887323102224338300552415040178248330163977<64> × 396617565007083620931188002164448757655876754586218585374821747799540417379<75> × 111016307964566649045756932943929716969554706760914531131640167955206717252780433501309849995957928482083803<108> |