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 p391, one of those codes.
Code name (*): p391 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Keiser, NewPGen, OpenPFGW Number of primes: total 1 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 46.6331, on current list 46.6331 (normalized score 7) Entrance Rank (*): mean 152.00 (minimum 152, maximum 152)
Below is additional information about this entry.
Display (text): Keiser, NewPGen, OpenPFGW Display (short): Keiser Database id: 8135 (do not use this database id, it is subject to change) Proof program: PrimeForm The primes from this code accounts for 0.231% of the (active) primes and 0.691% of the (active) score for this program. Entry last modified: 2022-10-06 10:50:11