Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 872: | \[{7^{872}-1\over6}\] | 25 × 52 × 1201 × 2617 × 5233 × 133417 × 28835297 × 62217815633<11> × 1689506462393<13> × 4393964775833<13> × 1183634452833113<16> × 14551288401737861<17> × 15902619513553141<17> × 10059414761347582747<20> × 198558877793513066390969<24> × 63505707690048880101785428103<29> × 1603857814141683915948496375897<31> × 1854413147145016784219270865881<31> × 3316547850397693557131427838097992150273<40> × 65760233951642524624117306202418130931989<41> × 23540782932240399632107200158745339309941271547<47> × 309936643044108190233102627233785196588910840411364776136097975124151<69> × [3651800942829738175908375786493642228265342172604783735833622148894481393075402911045112635526394305771143367880307571884306479511342774051084949563080405183893737596830729354127613220448320342694452346518616111108300668175633960508432462473112963252483418045861477970505480825390878316711579352242153<301>] |