# Proof-code: x18

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 x18, one of those codes.

Code name(*):x18 (See the descriptive data below.) Persons(*):2 (counting humans only) Projects(*):0 (counting projects only) Display (HTML):Irvine, Broadhurst Number of primes:total 4 Unverified Primes:0 (prime table entries marked 'Composite','Untested', or 'InProcess' Score for Primes(*):total 33.2392

Below is additional information about this entry.

Display (text): Irvine, Broadhurst Display (short): Irvine & Broadhurst Database id: 490 (do not use this database id, it is subject to change) Proof program: unknown Entry last modified: 2022-10-06 15:50:10

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