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Stefano D'Urso


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): L376, L1341, p285, L1958, p311, L2527
E-mail address: (e-mail address unpublished)
Web page:
Username: StefanoD (entry created on 06/04/2007)
Database id:1150 (entry last modified on 10/21/2018)
Active primes:on current list: 1 (unweighted total: 1), rank by number 551
Total primes: number ever on any list: 50 (unweighted total: 50)
Production score: for current list 43 (normalized: 1), total 46.5680, rank by score 995
Largest prime: 999999998 · 10419343 - 1 ‏(‎419352 digits) via code L1958 on 04/14/2019
Most recent: 999999998 · 10419343 - 1 ‏(‎419352 digits) via code L1958 on 04/14/2019
Entrance Rank: mean 5124.00 (minimum 5124, maximum 5124)

Surname: DUrso (used for alphabetizing and in codes)
Unverified primes are omitted from counts and lists until verification completed.
I am Stefano D'Urso and I would like to
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