Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 381: | \[{16^{381}-1\over15}\] | 3 × 7 × 13 × 509 × 2287 × 3049 × 15241 × 18797 × 26417 × 349759 × 72118729 × 124347733 × 140385293 × 2792688414613<13> × 8988357880501<13> × 118996959723157<15> × 198168459411337<15> × 38257184231365987<17> × 64502434019215168363033<23> × 90133566917913517709497<23> × 2333058913172380761753692385973<31> × 56713727820156410577229101238628035243<38> × 170141183460469231731687303715884105727<39> × 82723179283707558079607521798312521771184766697594996913<56> × 146077849095258012979038455861030312917057687842761187789973177<63> × 339212878596211796110770323541353281494127285320354524672773903<63> |