tables > repunit > 20

Base 20 Repunits

Table

Viewing: 688 – 688 << prev next >>

(available: 0-999)

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

* 688: \[{20^{688}-1\over19}\] 3 × 7 × 17 × 173 × 401 × 947 × 1033 × 2237 × 39217 × 160001 × 369122321 × 1505882353 × 1887652357 × 2593691596542044913493<22> × 12541974245083294274833711773684280721275134101<47> × 4423036668279780761301352642429727962990898576959823<52> × 10183165864042489505744319341840444146171123988044014091683098589378219601<74> × 362189816813849315242499305701090048760204668858143934761104742127307493292348917010943415388745785488889097153694580309163483991535798303003103810465657000098734862093946375565065593461047644831697052619461786640697<216> × [3569473605340659314789407946252397152349479873655467598190473129422339970121875563771306125263509838812669065961592267503753390634667068091763717734262746267577893794090012919976082561569777187451111412182266463432280699480989039957613699117233780513034289607365283096763636159057914616857630462465550560576297133244470824321196391714088079932399979370883352174491518722920072638941701294359173895746659091292622689156624933064089553<433>]

Index range: 688 – 688 << prev next >>