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 L4506, one of those codes.
Code name (*): L4506 (See the descriptive data below.) Persons (*): 2 (counting humans only) Projects (*): 1 (counting projects only) Display (HTML): Propper, Batalov, CycloSv, EMsieve, PIES, Prime95, LLR Number of primes: total 16 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 51.8134, on current list 51.8134 (normalized score 1638) Entrance Rank (*): mean 176.69 (minimum 12, maximum 1478)
Below is additional information about this entry.
Display (text): Propper, Batalov, CycloSv, EMsieve, PIES, Prime95, LLR Display (short): Propper & Batalov Database id: 8354 (do not use this database id, it is subject to change) Proof program: LLR The primes from this code accounts for 0.324% of the (active) primes and 2.064% of the (active) score for this program. Entry last modified: 2021-08-04 09:37:17