Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 640: | \[{11^{640}-1\over10}\] | 28 × 3 × 5 × 17 × 41 × 61 × 193 × 257 × 641 × 2081 × 3221 × 4001 × 5281 × 7321 × 13421 × 51329 × 225601 × 232961 × 424961 × 6304673 × 212601841 × 447600088289<12> × 10628056841921<14> × 295090738600481<15> × 1037593750081121<16> × 1120648576818041<16> × 316955440822738177<18> × 69220917578031208961<20> × 11710273559942897538241<23> × 507600819435356754028272641<27> × 1848907969970330213870279041<28> × 21283620033217629539178799361<29> × 399806412551699044818733915681<30> × 3550556591025613568771382218881<31> × 7423640128382244670648175746561<31> × 6800123162600764857457510501187194988801<40> × 7032401262704707649518767703756385761576062060673<49> × 119737851035803806670800025417629502185348323592232762764154119074894272609324691246093283528961<96> × 5524724012400997721022459307885720026650010179074186244542303868787731581448492386392181889532227837267201<106> |