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 x45, one of those codes.
Code name (*): x45 (See the descriptive data below.) Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Batalov, Primo, OpenPFGW, Unknown Number of primes: total 15 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess') Score for Primes (*): total 39.4560, on current list 39.4560 Entrance Rank (*): mean 57761.87 (minimum 48943, maximum 66967)
Below is additional information about this entry.
Display (text): Batalov, Primo, OpenPFGW, Unknown Display (short): Batalov Database id: 8789 (do not use this database id, it is subject to change) Proof program: (see the descriptive data above) Entry last modified: 2020-11-27 02:20:16