tables > repunit > 21

Base 21 Repunits

Table

Viewing: 497 – 497 << prev next >>

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

* 497: \[{21^{497}-1\over20}\] 43 × 631 × 3319 × 175939 × 493509073 × 260460438180097<15> × 6912925952086714539251625713<28> × 110556144297525239244017467747224789359885811468762753179<57> × [44648883507111785690915263604280016935255421987899029648880145058907860643525691463823279294730991870127312841423375292623466780197027601384033522416652419403662914156003119442494384418987975131655753132904496502243649562427749151563012149404347095441138063878429144924948289937944778520436632855627904524443560881642489919592805192734905601778049262415226436461661583902624527659924383007178976472291522716506163892528086717393232354376321631698157265411418416451751217907852923648520262687101140591777648809123083702351433564294560147<536>]

Index range: 497 – 497 << prev next >>