tables > repunit > 28

Base 28 Repunits

Table

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

64: \[{28^{64}-1\over27}\] 5 × 17 × 29 × 97 × 157 × 614657 × 2012449 × 4338337 × 7734913 × 13430849 × 168542177 × 22223646961<11> × 2716827163186049<16> × 72183193582863809<17>

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