Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
213: | \[{6^{213}-1\over5}\] | 43 × 22301660719710979<17> × 3546245297457217493590449191748546458005595187661976371<55> × 327847513652963406426698826336131054938461676556995234053638257938870937226907387644104752769<93> |