tables > repunit > 20

Base 20 Repunits

Table

Viewing: 647 – 647 << prev next >>

(available: 0-999)

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

* 647: \[{20^{647}-1\over19}\] 46090059977369<14> × 103219594088322431<18> × [646076840575421446509477680979340952415475271841165860285742504346065132142009296539142946976306031920090490990235708465696835607440866376624042540940041017766460358717337467081829747811802736485757169674939255549538108594385866812733886660271593845585665098984717374994254160663794648236480995663974883060394978967768489817307006110114284160675752247973722496537903548507759117246447999090697479713916886415401603590663784192346536234758539049858787886235135377264308716402880816427896421947288142500504345057438954163291552004943272225979441504776563912967504896396456306034129319944381302948470070217675116410973572976727418992514514878040761463784481511840616566961418344289651958418340127335437282338726500587238660281183393991496973482534529695724783777110819474484640491602107740916154803933151904653139<810>]

Index range: 647 – 647 << prev next >>