Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
63: | \[{22^{63}-1\over21}\] | 32 × 7 × 132 × 127 × 65899 × 297613 × 16968421 × 274392421115023<15> × 12271836836138419<17> × 117469409367089501611451181397<30> |