Note 2023 is the last year that I will maintain this site--there is currently no plan to continue it after that.

Henri Lifchitz

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 reflects 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):	g2, L, p4, c73
E-mail address:	henri.lifchitz@gmail.com
Web page:	http://www.primenumbers.net/Henri.html
Username	Lifchitz	(entry created on 1/18/2000 12:50:53 CDT)
Database id:	49	(entry last modified on 5/26/2014 15:40:59 CDT)
Active primes:	on current list: 0.5 (unweighted total: 1), rank by number 1056
Total primes:	number ever on any list: 1384 (unweighted total: 1471)
Production score:	for current list 33 (normalized: 0), total 39.9006, rank by score 1062
Largest prime:	2 · 6⁹⁸⁸⁹⁸ - 1 ‏(‎76958 digits) via code L on 1/8/2003 04:16:36 CDT
Most recent:	V(94823) ‏(‎19817 digits) via code c73 on 5/26/2014 15:44:48 CDT
Entrance Rank:	mean 58035.00 (minimum 58035, maximum 58035)

Descriptive Data: (report abuse)

Henri Lifchitz is french electronic engineer (ENSEA). He was born in Paris in 1948, married and has two children. He is interested in computational number theory, algorithms, arithmetic functions and especially Pi(n). He has studied Fibonnacci and Lucas numbers and published a table of primes below 20*10^6 in 1971. His son Renaud (born in 1982) is also a prime hobbyist.

Surname: Lifchitz (used for alphabetizing and in codes).
Unverified primes are omitted from counts and lists until verification completed.

I am Henri Lifchitz and I would like to

(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.