Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 270: | \[{19^{270}-1\over18}\] | 22 × 33 × 52 × 73 × 11 × 31 × 61 × 127 × 151 × 199 × 211 × 271 × 487 × 523 × 541 × 811 × 911 × 2251 × 4861 × 6661 × 29989 × 41203 × 216919 × 236377 × 584911 × 907471 × 1081291 × 2460181 × 2522827 × 362063089 × 1001724990823<13> × 8374006851436085760993151<25> × 735546785834162565719034301<27> × 2650228472822453446927731244021<31> × 11251993634195741555539192465447903964080975072892235091<56> × 217301139392931880414361208407908218574162549846031198440256270863814809842869089216766341<90> |