tables > repunit > base2

Base 2 Repunits

Table

Viewing: 81 – 81 << prev next >>

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

81: \[2^{81}-1\] 7 × 73 × 2593 × 71119 × 262657 × 97685839

Index range: 81 – 81 << prev next >>