tables > repunit > base2

Base 2 Repunits

Table

Viewing: 68 – 68 << prev next >>

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

68: \[2^{68}-1\] 3 × 5 × 137 × 953 × 26317 × 43691 × 131071

Index range: 68 – 68 << prev next >>