Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 357: | \[{23^{357}-1\over22}\] | 72 × 29 × 43 × 79 × 103 × 42331 × 170689 × 5336717 × 408030421 × 8446261097<10> × 1152351945487<13> × 170368682899801<15> × 62246266355102810647<20> × 66358768948515979027<20> × [1162535206091312901785687803403317453494952542187860077077047481256824346064722428699667675114046365993927524228486936355858143138215326648040329842731562089210501024975571220342483610862596164525398433787495028744793167604473956943342649834528524717661070518802914693925257213224441189416677395487771504645604757368657461255079438897755882629072613727376122580970619401525807<376>] |