Proof-code: p158
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  Samuel Yates began, and this site continues, a database of the largest known primes. Primes in that database are assigned a proof-code to show who should be credited with the discovery as well as what programs and projects they used. (Discoverers have one prover-entry, but may have many proof-codes because they use a variety of programs...) This page provides data on p158, one of those codes.

Code name (*):p158   (See the descriptive data below.)
Persons (*):1 (counting humans only)
Projects (*):0 (counting projects only)
Display (HTML):Paridon, NewPGen, OpenPFGW
Number of primes:total 6
Unverified Primes:0 (prime table entries marked 'Composite','Untested', or 'InProcess')
Score for Primes (*):total 33.0372

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Descriptive Data: (report abuse)
164210699973*2^26328-1 Cunningham chain (4p+3) 164210699973*2^26327-1 Cunningham chain (2p+1) 164210699973*2^26326-1 Cunningham chain (p)
Below is additional information about this entry.
Display (text):Paridon, NewPGen, OpenPFGW
Display (short):Paridon
Database id:936 (do not use this database id, it is subject to change)
Proof program:PrimeForm  
Entry last modified:2017-10-22 12:20:13