Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 225: | \[{28^{225}-1\over27}\] | 32 × 192 × 31 × 271 × 15101 × 15991 × 36901 × 106801 × 444979 × 637421 × 734941 × 48403441 × 6813064001<10> × 7984305701<10> × 171813927594772108174052851<27> × 1114029602365666612314868561<28> × 1214016885302580230773187551<28> × [455998864346306565971337770572758223743496814858212471139871747384633697483282766904889976707595846202488633340029143182191670603588998297886601525595753262659424126763008001<174>] |