Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 644: | \[{15^{644}-1\over14}\] | 25 × 7 × 29 × 47 × 113 × 277 × 829 × 2393 × 5153 × 6257 × 25439 × 31741 × 45403 × 81421 × 488153 × 825287 × 1743463 × 10678711 × 16025297 × 22414099 × 132653513 × 3549551867 × 164006995391<12> × 4454215139669<13> × 40193672100977<14> × 3046462151831565769<19> × 3230238627505403797<19> × 3001167062138973417187<22> × 42718929115628650779049<23> × 503497353070289038482877666301<30> × 5847586221158834503394290382171<31> × 18276597658023070692498937909943<32> × 49245801647678195738356044293290778036681599139949047718848674404053262907912519619<83> × 10691482317746416872150191050016464338144594166482876914535067457485697641896186048600213290837<95> × [743284181642018937260357796850105452123344736550412439695739277247940659097013768975701396076073720368220107076688982025092904091955089644460088639011439471299307787881494576330456589452171725220213012643961551975402613386702916464233138965595448541309279688547968495461<270>] |