tables > repunit > 21

Base 21 Repunits

Table

Viewing: 142 – 142 << prev next >>

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

142: \[{21^{142}-1\over20}\] 2 × 11 × 493509073 × 826880829487<12> × 172132091765842074983<21> × 6912925952086714539251625713<28> × 110556144297525239244017467747224789359885811468762753179<57> × 2409031482389671650882277254771562219466455949802660831413381<61>

Index range: 142 – 142 << prev next >>