tables > repunit > 20

Base 20 Repunits

Table

Viewing: 678 – 678 << prev next >>

(available: 0-999)

Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

* 678: \[{20^{678}-1\over19}\] 32 × 7 × 127 × 227 × 421 × 1583 × 2053005947539<13> × 714118397870688383<18> × 1952326470639684809<19> × 4476256176796913206021<22> × 44624993356391326687993369<26> × 1055739390077562445885478999<28> × 2211885359844801393112993637394310145562997671925382782373917427159538838513487<79> × 25216742053690826851385731641839583568602676821457684036686275636550830533061584837395209468563118833549361<107> × [572244979196567637780313976963352473494580579001841333684265503296485802755893025273445724643473868583388293215228661187779802165405862959000523458686287945439146267246124317997404042790174694928881994186442062273038256229785966014081659184200241642797519180788655146761<270>] × [2830440594976445122799686623309147577284739571920270076756284540600104986876640419947506561679790026246719160104986876640419947506561679790026246716434489838039460562451183029280789501312335958005249343832020997375328083989501312335958005249343832020997375328083989501312335958005249343832021<292>]

Index range: 678 – 678 << prev next >>