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 L4909, one of those codes.
Code name (*): L4909 Persons (*): 1 (counting humans only) Projects (*): 1 (counting projects only) Display (HTML): Hall, GFNSvCUDA, GeneFer, AthGFNSieve, PrimeGrid, LLR Number of primes: total 27 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess') Score for Primes (*): total 48.1448, on current list 48.1448 (normalized score 52) Entrance Rank (*): mean 2470.52 (minimum 395, maximum 2572)
Below is additional information about this entry.
Display (text): Hall, GFNSvCUDA, GeneFer, AthGFNSieve, PrimeGrid, LLR Display (short): Hall Database id: 8852 (do not use this database id, it is subject to change) Proof program: LLR The primes from this code accounts for 0.550% of the (active) primes and 0.070% of the (active) score for this program. Entry last modified: 2020-08-10 23:50:17