Leon Marchal
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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): p85
E-mail address: leon.marchal@key2brains.com
Web page:http://www.Key2Brains.com
Username: Marchal (entry created on 05/16/2002)
Database id:371 (entry last modified on 10/10/2006)
Active primes:on current list: 0.3333 (unweighted total: 1), rank by number 1082
Total primes: number ever on any list: 0.3333 (unweighted total: 1)
Production score: for current list 39 (normalized: 0), rank by score 1039
Largest prime: 34790! - 1 ‏(‎142891 digits) via code p85 on 05/21/2002
Most recent: 34790! - 1 ‏(‎142891 digits) via code p85 on 05/21/2002
Entrance Rank: mean 55.00 (minimum 55, maximum 55)

Descriptive Data: (report abuse)
Tradtionally I'm a Bioprocess engineer (Wageningen University, The Netherlands). Have a PhD on enzymatic starch conversion. Worked some years in the starch and protein industry. Worked 3 years as manager development for a food and feed ingredients company in the Netherlands. After a sabbatical year together with Els cycling through Asia I founded Key2Brains. Key2Brains specializes in fast and confidential solving of innovation problems for the Food, Agro and Life Science market. We use an extensive team of excellent researchers and creative minds to solve small or larger innovation questions. More information can be found on http://www.Key2Brains.com Besides some hobbies (hiking, sailing, cycling) I have an interest in computer science i.e. distributed computing. I'm currently using some spare CPU capacity around here to participate in the prime search.

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