Katsumi Hirai
(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): L2684, L3549
E-mail address: (e-mail address unpublished)
Username: KHirai (entry created on 09/13/2011)
Database id:3129 (entry last modified on 06/19/2013)
Active primes:on current list: 1 (unweighted total: 1), rank by number 517
Total primes: number ever on any list: 3 (unweighted total: 3)
Production score: for current list 45 (normalized: 6), total 45.7450, rank by score 465
Largest prime: 243686 · 51036954 - 1 ‏(‎724806 digits) via code L3549 on 06/19/2013
Most recent: 243686 · 51036954 - 1 ‏(‎724806 digits) via code L3549 on 06/19/2013
Entrance Rank: mean 155.00 (minimum 155, maximum 155)

I am Katsumi Hirai and I would like to
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Submit primes using the proof-code: (a password will be required)
(Reuse an old code if your are using the same programs, projects... Only create a new code if you are doing something differently than in the past. Duplicate codes will be merged.)
Surname: Hirai (used for alphabetizing and in codes)
Unverified primes are omitted from counts and lists until verification completed.