tables > repunit > base20

Base 20 Repunits

Table

Viewing: 12 – 12 << prev next >>

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

12: \[{20^{12}-1\over19}\] 32 × 7 × 13 × 127 × 401 × 421 × 12277

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