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 L1959, one of those codes.
Code name (*): L1959 Persons (*): 1 (counting humans only) Projects (*): 1 (counting projects only) Display (HTML): Metcalfe, PSieve, Srsieve, Rieselprime, LLR Number of primes: total 458 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 50.2793, on current list 49.8445 (normalized score 221) Entrance Rank (*): mean 929.76 (minimum 68, maximum 1581)
Below is additional information about this entry.
Display (text): Metcalfe, PSieve, Srsieve, Rieselprime, LLR Display (short): Metcalfe Database id: 5389 (do not use this database id, it is subject to change) Proof program: LLR The primes from this code accounts for 2.013% of the (active) primes and 0.267% of the (active) score for this program. Entry last modified: 2021-10-25 01:37:23