tables > repunit > 21

Base 21 Repunits

Table

Viewing: 668 – 668 << prev next >>

(available: 0-999)

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

* 668: \[{21^{668}-1\over20}\] 22 × 11 × 13 × 17 × 1102201 × 19470197 × 364654187 × 17770140143812417<17> × 2040970260732926549747923539439137458678677<43> × 20231878724432159106473151940489466149676377569946589675188861313754293570228700650486980343491462439<101> × 7446031435458004141923577009324871384387277476816498485650562324308647434520507573854037042870112336785089<106> × 222223920771118693827943769472951127166580113219492638104051461890936218869407579237267145429077135317459050136108183338525596920220643698239804251350667<153> × [9458497900496913851679133536360528162829686984892917309060863358088721251800440489666760063574262088193676869294445534875286877013090118693544970617319985122323356944257390150948077787788956459505557910038589776390067297069812898108168995220895981893632461893776138635479136782658822028308799049709364568076719988220819391893018592258996077218117975878554435431200506051917039246380448905630202783892250087877726868430450076168667334578921<439>]

Index range: 668 – 668 << prev next >>