tables > repunit > 21

Base 21 Repunits

Table

Viewing: 690 – 690 << prev next >>

(available: 0-999)

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

* 690: \[{21^{690}-1\over20}\] 2 × 5 × 11 × 31 × 47 × 139 × 211 × 277 × 421 × 461 × 463 × 599 × 691 × 1381 × 2531 × 2551 × 9391 × 11731 × 18181 × 19597 × 40841 × 182851 × 185641 × 501001 × 17273461 × 22952851 × 595377311 × 688660481 × 24705357541<11> × 58286351831<11> × 69727564981<11> × 282924347471791<15> × 459878292118921111<18> × 1322715809759301301<19> × 2215825387044753577<19> × 4007561439284483090161<22> × 139870566115103282847737<24> × 2242144114345327270986492061<28> × 2923307371333326960392026681<28> × 3394964812534556016503466037951<31> × 97753871566292374059444437705671<32> × 31179105887601949149105715319437017328831<41> × 113446385036884293778618204054931232136334832994350798619<57> × 209058863218345220988748673221343512407060674263723023401269471<63> × 162708209139159956445385758966200454982244714891163955510792310084461<69> × 179306901847844091329042084365596049968662786702513473151391601290378374893106717847388237140496819178526036355844152900943522851<129> × [55628083120943845691722717632712935233175689558572131790616992007938295180799934252746048920343516132800436769310766203427915333834948457241392629812126532893991919634063305327286482608751<188>]

Index range: 690 – 690 << prev next >>