Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 213: | \[{23^{213}-1\over22}\] | 7 × 79 × 2131 × 5715217 × 11929279 × 1172158171 × 351156543156995844791<21> × 30484691106128197292600811511<29> × 12689965311931555366531418920750153<35> × 23052022067431050825264764433875832941<38> × 17215222671432630265940137891486871390024743564700668390093974631196870973741935223320018089374863113290616233522997048221949277049261903643<140> |