Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 203: | \[{28^{203}-1\over27}\] | 59 × 113 × 2437 × 4422461 × 4746008971253789<16> × 5380105336587550157<19> × 582595509837473004489665028935473297399<39> × [20548500513384842476915467571692540323553738405171963755488893349088993862893604842587692794309498349613390509807411563280447158956016974511408907265696057383569040258242965593436347871404979054670154369001<206>] |