Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 480: | \[{19^{480}-1\over18}\] | 26 × 3 × 52 × 73 × 11 × 132 × 17 × 31 × 41 × 61 × 97 × 127 × 151 × 181 × 211 × 241 × 271 × 577 × 769 × 911 × 1009 × 2251 × 3833 × 4297 × 4657 × 5441 × 14929 × 15073 × 29569 × 113921 × 563377 × 1081291 × 2460181 × 2772481 × 3952393 × 171434401 × 478382041 × 14706033761<11> × 16936647121<11> × 1687178375041<13> × 5246386494721<13> × 453770403352641601<18> × 1486811410142377153<19> × 6163870442158237952544812259041<31> × 45741970047992830418106206245201<32> × 30008663379835140331261614092712001<35> × 83198449060887472631140495091974297750081<41> × 83199087472571360789685166938018099401281<41> × 1811734042398021137734599214581536786155361<43> × 151326711973315968449651627103886879683632825766961<51> × 20126324679271168530900001728219432704900617483648148593293725447654843107795123459340321162963589871851827304989102782836192773438401<134> |