Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
181: | \[{18^{181}-1\over17}\] | 65536068769<11> × 346355593522241<15> × 250524183190568846758799<24> × 543273751095190224559996132367139795972713278881225124948777<60> × 3047919786673894251191654943045699027008778749698511051443054232793851774220176371512333056119508656476644395454183353<118> |