Masakatu Morii
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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.)
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Proof-code(s): MM, gm, g339
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Username: Morii (entry created on 01/18/2000)
Database id:47 (entry last modified on 07/28/2014)
Active primes:on current list: 3 (unweighted total: 3), rank by number 272
Total primes: number ever on any list: 5 (unweighted total: 5)
Production score: for current list 40 (normalized: 0), total 40.7998, rank by score 1024
Largest prime: 481899 · 2481899 + 1 ‏(‎145072 digits) via code gm on 09/30/1998
Most recent: 19830119 · 2168199 + 1 ‏(‎50641 digits) via code g339 on 02/18/2004
Entrance Rank: mean 160.00 (minimum 7, maximum 238)

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Dr. Masakatu Morii has been a Professor at the Department of Electrical and Electronics Engineering, Kobe University, Kobe, Japan. His research interests are in error correcting codes, cryptography, discrete mathematics and computer networks. He has found the second largest Cullen prime in 1998; 481899*2^{481899}+1.

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Surname: Morii (used for alphabetizing and in codes)
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