tables > repunit > 21

Base 21 Repunits

Table

Viewing: 15 – 15 << prev next >>

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

15: \[{21^{15}-1\over20}\] 5 × 211 × 463 × 9391 × 18181 × 40841

Index range: 15 – 15 << prev next >>