tables > repunit > base4

Base 4 Repunits

Table

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

68: \[{4^{68}-1\over3}\] 5 × 172 × 137 × 953 × 26317 × 43691 × 131071 × 354689 × 2879347902817<13>

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