Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
109: | \[{23^{109}-1\over22}\] | 70924339 × 177474006875545648530139375828028996734511668004319211735630440953<66> × 96823637328996371234273465541569571507588950631201680979209397728492900963<74> |