tables > repunit > 21

Base 21 Repunits

Table

Viewing: 475 – 475 << prev next >>

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

* 475: \[{21^{475}-1\over20}\] 52 × 40841 × 860701 × 2031851 × 12061389013<11> × 19449969211<11> × 2927638826951<13> × 54921106624003<14> × 619598441951897251<18> × 2522688573446019221<19> × 27385718497004633851<20> × 5771606016464126434601<22> × 4962575794097659196896553056277931780683391554141<49> × [6859295529552080428432734382310981790250568899445033814894689681285689031037803475162915521951643401486398111787349629085271456947256029927942102925822314096094621537450013010371913391295074802303788528989643914616630588630286071676388144538471767459016093970326890345844176500441672258872793211860069101446978082768001255701129018875269676665077962466898901996239836555860915678570647689265171557791622035199220051164631736961606337851<436>]

Index range: 475 – 475 << prev next >>