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 L53, one of those codes.
Code name (*): L53 Persons (*): 1 (counting humans only) Projects (*): 1 (counting projects only) Display (HTML): Zaveri, ProthSieve, RieselSieve, PRP, LLR Number of primes: total 2 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 45.9387, on current list 45.9273 (normalized score 4) Entrance Rank (*): mean 19.00 (minimum 19, maximum 19)
Below is additional information about this entry.
Display (text): Zaveri, ProthSieve, RieselSieve, PRP, LLR Display (short): Zaveri Database id: 750 (do not use this database id, it is subject to change) Proof program: LLR The primes from this code accounts for 0.020% of the (active) primes and 0.005% of the (active) score for this program. Entry last modified: 2021-12-07 05:37:18