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 L257, one of those codes.
Code name (*): L257 Persons (*): 1 (counting humans only) Projects (*): 1 (counting projects only) Display (HTML): Ritschel, Srsieve, Rieselprime, LLR Number of primes: total 132 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 47.0776, on current list 46.3879 (normalized score 7) Entrance Rank (*): mean 1032.33 (minimum 369, maximum 1420)
Below is additional information about this entry.
Display (text): Ritschel, Srsieve, Rieselprime, LLR Display (short): Ritschel Database id: 1347 (do not use this database id, it is subject to change) Proof program: LLR The primes from this code accounts for 0.061% of the (active) primes and 0.008% of the (active) score for this program. Entry last modified: 2021-10-22 19:37:20