tables > repunit > base13

Base 13 Repunits

Table

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

20: \[{13^{20}-1\over12}\] 22 × 52 × 7 × 11 × 17 × 421 × 601 × 641 × 2411 × 30941

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