Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 168: | \[{16^{168}-1\over15}\] | 3 × 72 × 13 × 17 × 29 × 43 × 97 × 113 × 127 × 193 × 241 × 257 × 337 × 449 × 673 × 1429 × 2017 × 2689 × 3361 × 5153 × 5419 × 14449 × 65537 × 15790321 × 22253377 × 47886721 × 183076097 × 25629623713<11> × 54410972897<11> × 88959882481<11> × 358429848460993<15> × 1538595959564161<16> × 131084304485119425504284495119889529996019181850241<51> |