tables > repunit > 21

Base 21 Repunits

Table

Viewing: 479 – 479 << prev next >>

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

* 479: \[{21^{479}-1\over20}\] 35447 × 618869 × 16597351 × 5157741713<10> × 46520546283031075013719<23> × 30836466702108043859755001<26> × [40890854241815927176153038737784401941054798073297877132476693869556120240483473000572350143352967161997695697788034366951119148928434295827586037715134204573540069061400836934697946827753461826414498192654385777617171582546395070149282130285257675335945066193344962024637365873435722305873249109537894839808739339075151966404700890511021894451780932312367326359242647311922745861459299882525114364414669215685422792807747778353007811787464146152932291185356266022225038748497004528128190374802962189793373436090810070167665503752532116179850570652680691769<557>]

Index range: 479 – 479 << prev next >>