Base 2 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 845: | \[2^{845}-1\] | 31 × 4057 × 8191 × 4493034001<10> × 6740339310641<13> × 145295143558111<15> × 3340762283952395329506327023033<31> × 53928095661079461754990292241379839311<38> × 287282708715244103685014077967167854244103153501447576012208890261261392713614451150289222934411457607080252131792042266424438261450262286271<141> |