tables > repunit > 21

Base 21 Repunits

Table

Viewing: 493 – 493 << prev next >>

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

* 493: \[{21^{493}-1\over20}\] 59 × 1973 × 4931 × 1103704099 × 246763300513<12> × 687613372491653<15> × 1502097124754084594737<22> × 12321006690840707733967<23> × 71319000228749440241533<23> × [2518495702086429236064809906631643364719940399042980079547329773630655791693931695638524466806875969477354416392648122874029837070861280208714679053158855126821236356768382704281941622857185162479334003432839804548193524770710916672593780351419036023158419186027495136606558348835184336501942106042095602106827512508485184097647671675594646596169612959209350890982336364791047838216144784510897891491501697455918578100508388358868262935194568277549585012163546707563742351456755876813811622178640570303264205518183645121885854931785178139717<541>]

Index range: 493 – 493 << prev next >>