Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 539: | \[{15^{539}-1\over14}\] | 72 × 67 × 463 × 2333 × 5237 × 6469 × 8537 × 1743463 × 5706541 × 10164071 × 46339987 × 4175288799599<13> × 28095816025663<14> × 14675999570738648605387<23> × 233231979450578549516941109533238047237736577451339331<54> × [303064970754586424473510759601640598684474223137116574528589865050160719658237791392013451598755850781580772943993389545027282657841668091231434883797970088407829030674641966300845980417865439306703817864396215860318755781607109964347217360210478451255366212893657477603146261161455125184907194344265924320833953485167830465616658499363093123259021669447187780569050283503421755384532618239748584903408991385847323320594001943418223179343636715771755297864508754054438462403309821567<483>] |