tables > repunit > 20

Base 20 Repunits

Table

Viewing: 421 – 421 << prev next >>

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

* 421: \[{20^{421}-1\over19}\] 340169 × 32858209 × 373009186129<12> × 17551893686341163389<20> × [38948653263049963186151013336431014266250220696874112623958593435031151275414502860616481624562189361224074370084093956151372620271632450633033048666301823391273038113570727202201108812608653577845047362577461261829372949643020687596311982983046295683671219228170467001296401227927687533640497762281121336850160486798659002525130552118099838107004890255130803796234900758222691946374359943921235613333954315473177417255615118022109060976167338830630011839766630945324160174072407126261771411569125250321<503>]

Index range: 421 – 421 << prev next >>