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 L503, one of those codes.
Code name (*): L503 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Benson, Srsieve, LLR Number of primes: total 77 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 47.9126, on current list 47.6085 (normalized score 20) Entrance Rank (*): mean 34.00 (minimum 21, maximum 51)
Below is additional information about this entry.
Display (text): Benson, Srsieve, LLR Display (short): Benson Database id: 3445 (do not use this database id, it is subject to change) Proof program: LLR The primes from this code accounts for 0.081% of the (active) primes and 0.023% of the (active) score for this program. Entry last modified: 2022-06-26 17:50:12