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 c18, one of those codes.
Code name (*): c18 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Luhn, Primo Number of primes: total 89 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 33.7835, on current list 28.4901 Entrance Rank (*): mean 101951.50 (minimum 93761, maximum 110142)
Below is additional information about this entry.
Display (text): Luhn, Primo Display (short): Luhn Database id: 330 (do not use this database id, it is subject to change) Proof program: Primo The primes from this code accounts for 2.571% of the (active) primes and 0.000% of the (active) score for this program. Entry last modified: 2021-10-19 09:37:20