tables > repunit > 21

Base 21 Repunits

Table

Viewing: 413 – 413 << prev next >>

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

* 413: \[{21^{413}-1\over20}\] 43 × 631 × 3319 × 896447 × 226957543 × 334217419 × 5883381589<10> × 47540111129611360301<20> × 3599933694931243085497791696053868938364103<43> × [9672831673195756273068092761361394278017909116305243220674860294853803701091985797897286599763524083362851407133997470679518871719498709996339196949134309616421271746933774815602456359979477374506643171234800201833453618170853807936626642221677653894032198275983122830330031062000205830588958278168409323289880699116643257515165870360001562465335461454269848256727053472038085116070546721274989727328363041035302851699908059884992402487341203<442>]

Index range: 413 – 413 << prev next >>