Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 672: | \[{8^{672}-1\over7}\] | 33 × 5 × 7 × 13 × 17 × 19 × 29 × 37 × 43 × 73 × 97 × 109 × 113 × 127 × 193 × 241 × 257 × 337 × 433 × 449 × 577 × 673 × 1009 × 1153 × 1429 × 2017 × 2689 × 3361 × 5153 × 5419 × 6337 × 14449 × 21169 × 34273 × 38737 × 65537 × 92737 × 649657 × 2627857 × 15790321 × 22253377 × 47886721 × 183076097 × 269389009 × 423319681 × 25629623713<11> × 38941695937<11> × 40388473189<11> × 54410972897<11> × 77158673929<11> × 88959882481<11> × 118750098349<12> × 278452876033<12> × 487824887233<12> × 358429848460993<15> × 1538595959564161<16> × 1475204679190128571777<22> × 494077391563970390335488001<27> × 7201935329692363728844274296784241409<37> × 1006545610655423007817780018765739801419395841<46> × 131084304485119425504284495119889529996019181850241<51> × 163129078976626145477798423051187262197756524727184748929<57> × 14510642956629460126286667764218111732339625499480335264478327629658324054225616417<83> |