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 E3, one of those codes.
Code name (*): E3 Persons (*): 1 (counting humans only) Projects (*): 0 (counting projects only) Display (HTML): Enge, CM Number of primes: total 4 Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes (*): total 38.6564, on current list 38.6564 Entrance Rank (*): mean 58776.25 (minimum 54894, maximum 61367)
Below is additional information about this entry.
Display (text): Enge, CM Display (short): Enge Database id: 9633 (do not use this database id, it is subject to change) Proof program: cm The primes from this code accounts for 7.143% of the (active) primes and 43.383% of the (active) score for this program. Entry last modified: 2022-12-02 10:50:12