tables > repunit > base10

Base 10 Repunits

Table

Viewing: 21 – 21 << prev next >>

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

21: \[{10^{21}-1\over9}\] 3 × 37 × 43 × 239 × 1933 × 4649 × 10838689

Index range: 21 – 21 << prev next >>