Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 254: | \[{16^{254}-1\over15}\] | 17 × 509 × 18797 × 26417 × 3108961 × 72118729 × 140385293 × 17664039857<11> × 2792688414613<13> × 8988357880501<13> × 90133566917913517709497<23> × 357319966758824298104849<24> × 3284305317126808646829056321<28> × 78829341974215087229120114369<29> × 56713727820156410577229101238628035243<38> × 170141183460469231731687303715884105727<39> × 9702750326896479671727000542228750333832492673090744273<55> |