tables > repunit > 21

Base 21 Repunits

Table

Viewing: 654 – 654 << prev next >>

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

* 654: \[{21^{654}-1\over20}\] 2 × 11 × 421 × 463 × 961458481 × 252649631352967<15> × 243559381356675673<18> × 180021627106433117888633521<27> × 12437625258656743104073625051<29> × 15547495436546185942695879543470800471<38> × 311230778906803012635032244112217936159403426704742287611438860807922580555261<78> × 1075844735830122358017703049625189977667287013021268821502115973717283800539785976074877960131456456976157869419<112> × [23131269760725786508940830794347520438471355836807691987903703001668742851522100979637658028746074071415742137352269393771415103050485950408404869494897904825066844560132091667732002958469347018720308226084595593681749258179738097925990315787733122796829139041<260>] × [3938172419152858154817497203969841611773037176100739992840748911294956098293577995633305875948064762901450976392814188559614222786760479891077952898737359461257067217712359944634962558035951566996905381565026166142900898815382548451074844576486316883641614304138324379828896481<277>]

Index range: 654 – 654 << prev next >>