tables > repunit > 21

Base 21 Repunits

Table

Viewing: 640 – 640 << prev next >>

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

* 640: \[{21^{640}-1\over20}\] 27 × 5 × 11 × 13 × 17 × 41 × 241 × 257 × 641 × 1217 × 1409 × 2689 × 9521 × 23041 × 31873 × 35201 × 40841 × 51521 × 60161 × 62897 × 97241 × 185641 × 300673 × 527489 × 3441241 × 22995281 × 33534961 × 920421641 × 3184193681 × 6857635489<10> × 70660081537<11> × 363230092241<12> × 415710882920521<15> × 742519225358081<15> × 1419403339065601<16> × 1023263388750334684164671319051311082339521<43> × 242055625097457531000185232276713458675446736812859343682689<60> × 160240451081797786982584096011519912592914325275939917098602236161<66> × 5659400066001744812371391161347769659744650976364564627878379657229417069791676288002909353578404883142904109780249995489289306587234660609146182712711240273601<160> × [9408758153740299881478906625168530047181846934667526990303641916153390170911615405427643956685879513674615917930905085183905353347410656746386849666270470799191257283506182451546495176181979279167532257062601905111880465197741093383267245263753521761497402386420633193251299307203356477259225557243771727067532600779521<319>]

Index range: 640 – 640 << prev next >>