tables > repunit > 20

Base 20 Repunits

Table

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

32: \[{20^{32}-1\over19}\] 3 × 7 × 17 × 97 × 401 × 160001 × 1505882353 × 6756288659793814433<19>

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