Proof-code: CH2
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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 CH2, one of those codes.

Code name (*):CH2   (See the descriptive data below.)
Persons (*):1 (counting humans only)
Projects (*):0 (counting projects only)
Display (HTML):Wu_T, Primo, OpenPFGW, CHG
Number of primes:total 7
Unverified Primes:0 (prime table entries marked 'Composite','Untested', or 'InProcess')
Score for Primes (*):total 38.9743, on current list 38.9708
Entrance Rank (*):mean 34483.67 (minimum 30230, maximum 40468)

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Helper files and primality certificates for GRUs proven with this code are available here.
Below is additional information about this entry.
Display (text):Wu_T, Primo, OpenPFGW, CHG
Display (short):Wu_T
Database id:1072 (do not use this database id, it is subject to change)
Proof program:CHG  The primes from this code accounts for 22.222% of the (active) primes and 67.066% of the (active) score for this program.
Entry last modified:2014-10-01 00:50:12