Ernst W. Mayer
(Another of the Prime Pages' resources)
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person A titan, as defined by Samuel Yates, is anyone who has found a titanic prime. This page provides data on those that have found these primes. The data below only reflect on the primes currently on the list. (Many of the terms that are used here are explained on another page.)

Proof-code(s): EM, M1
E-mail address:
Web page:
Username: Mayer (entry created on 01/18/2000)
Database id:67 (entry last modified on 07/16/2017)
Active primes:This entry has no primes on the current list.
Total primes: number ever on any list: 4 (unweighted total: 8)
Production score: no primes, so no score for current list, total 28.5173

Descriptive Data: (report abuse)
Maintains a website with links to software and benchmarks for Mersenne testing freeware for non-Intel platforms. Author of Mlucas, currently the most popular Mersenne-testing code for non-x86.

In collaboration with Richard Crandall and Jason Papadopoulos, conducted a computational proof of the composite character of the twenty-fourth Fermat number (5050446 decimal digits).

Currently holds the record (jointly with F. Morain for the largest proven "hard" prime (not of a special form), the 2196-digit Mersenne cofactor (2^7331-1)/458072843161 .

Works for Adaptive Silicon Inc., a high-tech startup in Los Gatos, California, specializing in embeddable programmable logic.

In his spare time, enjoys sharing awful puns and select German Weissbier with Luke Welsh.

I am Ernst W. Mayer and I would like to
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Surname: Mayer (used for alphabetizing and in codes)
Unverified primes are omitted from counts and lists until verification completed.