Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
222: | \[{5^{222}-1\over4}\] | 2 × 32 × 7 × 31 × 149 × 223 × 3109 × 5107 × 9103 × 668221 × 13844587 × 29010221 × 107903101 × 13971969971<11> × 8737481256739<13> × 45920153384867<14> × 221746234901611997486023<24> × 54928520946880307112306785731407655242899973469<47> |