Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 430: | \[{18^{430}-1\over17}\] | 11 × 19 × 41 × 431 × 2711 × 9041 × 143169361 × 5129762401<10> × 14954897761<11> × 597455435179<12> × 1462044185771441<16> × 2643705155842292927644361<25> × 4464951753212028068412713<25> × 28971751902509263440682681<26> × 16276512351314787405765413256433<32> × 110960033256839059975923776000881<33> × 896349510145392429932283061091757313213735951<45> × 2517872307605785974471637548714262436055047342788737623015717449321<67> × 8499302998610843705239199741878401678060575277086508852579737810561<67> × [3344654011825962699050294430874510867527577506326969380741977886333371597749922849752584555691356372902852830873981926519401838608209513049364226055557171<154>] |