Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 343: | \[{15^{343}-1\over14}\] | 73 × 1373 × 1743463 × 5706541 × 10164071 × 4175288799599<13> × 13737400523434881834731<23> × 14675999570738648605387<23> × 329211421038132270542563<24> × 135731963340965258418780328869117049614771976550495117107996950437980444847984086047577900889905148566599185017826658315552081831822618742298983397010992886431128770551000118751110136324375543235944064029760712747818540948035062715309182452482569308704873644446020236081915339921282087628978578547<297> |