Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 606: | \[{15^{606}-1\over14}\] | 24 × 211 × 241 × 607 × 9091 × 73327 × 205031 × 6975061 × 9264529 × 401588323 × 1565511919 × 9570993109<10> × 126531769801<12> × 266898076009<12> × 304406221789<12> × 94428772268291<14> × 353876143580467<15> × 5587621895329267<16> × 327949630610048243<18> × 9141667953856548589<19> × 36539715465296303062532683<26> × 527483573295199221699442333429<30> × 437510663152715822488320144286150584129478636303<48> × 792423938062507527430649714259255216772926371811525455428211581<63> × 137227530544033625639086502329153103203779374789738946118360487688308100467<75> × 6520789680895888261595254452349566657563700235439519475833608719869537751275524627<82> × [4068462458734100866094792341884530083976385591225342298780290811093697139642814263823225727022606371180970062546340230902365926566703043461532297759100371732647055845688320394265291347017374426090468961103559561<211>] |