Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
66: | \[{23^{66}-1\over22}\] | 23 × 32 × 7 × 11 × 132 × 67 × 79 × 331 × 6073 × 27919 × 23130823 × 3937230404603<13> × 37942113104611<14> × 39700406579747<14> × 890785539136914450283<21> |