Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 151: | \[{23^{151}-1\over22}\] | 907 × 2719 × 15101 × 50986870406129736955199054368546402050805090684776189474349741129168724525663598342281828623219935561187831425537614972908245100481392128653777928181264654655865731815116431552055741529269254201<194> |