Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 374: | \[{18^{374}-1\over17}\] | 17 × 19 × 23 × 137 × 199 × 443 × 12343 × 16127 × 29921 × 51217 × 520609 × 536801 × 2256343 × 6301307 × 188193809 × 2594256611 × 279084170477311<15> × 1895634885375961<16> × 7563707819165039903<19> × 84688124912529896476569181570824417302559780435315045751<56> × 5318489792041762806549073636257508552021068757693442928768584815082574458802811950104256348144716907830270120951<112> × 18221377447520867924189907910201825412665327482683069896249995874237929221543225033361824000666615426722927982747255272282873048125135207461178254787995411703539607138772893006964369<182> |