Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
111: | \[{5^{111}-1\over4}\] | 31 × 149 × 3109 × 13971969971<11> × 8737481256739<13> × 54928520946880307112306785731407655242899973469<47> |