tables > repunit > 20

Base 20 Repunits

Table

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

61: \[{20^{61}-1\over19}\] 1831 × 1575631 × 74324733207911<14> × 5659784747821331230431654824725808002385097133154909051<55>

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