tables > repunit > 2

Base 2 Repunits

Table

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

689: \[2^{689}-1\] 6361 × 8191 × 69431 × 20394401 × 135995976143<12> × 1067583682127<13> × 1372617429248257063179636119999552844862152089<46> × 174687898994276645505939406294688103239668147144656196121612035919719163968649013990717451692888658382291763182243248439<120>

Index range: 689 – 689 << prev next >>