Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 266: | \[{16^{266}-1\over15}\] | 17 × 29 × 43 × 113 × 127 × 229 × 457 × 1217 × 1597 × 2129 × 4523 × 148961 × 174763 × 524287 × 525313 × 15790321 × 1692116131441<13> × 24517014940753<14> × 126848469231149<15> × 679253585011429<15> × 139065006256539545729<21> × 106788290443848295284382097033<30> × 449329386292232535250647435097<30> × 163537220852725398851434325720959<33> × 50077084767631215481459045535942286719035243087652929001293138096831344998442654133431262500866849<98> |