Serge Batalov

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.)

Proof-code(s):	p258, L1170, p286, p291, L2444 ... ... E17, x52, CH15, p452, p453
E-mail address:	(e-mail address unpublished)
Username	Batalov	(entry created on 10/8/2009 05:50:05 UTC)
Database id:	1994	(entry last modified on 4/20/2026 21:53:18 UTC)
Active primes:	on current list: 387.333 (unweighted total: 433), rank by number 1
Total primes:	number ever on any list: 1057.17 (unweighted total: 1108)
Production score:	for current list 54 (normalized: 4325), total 54.6505, rank by score 7
Largest prime:	516693^2097152 - 516693^1048576 + 1 ‏(‎11981518 digits) via code L4561 on 10/2/2023 00:29:30 UTC
Most recent:	78531447842897 · 3727#/2 + 4 ‏(‎1605 digits) via code E14 on 3/15/2026 20:20:08 UTC
Entrance Rank:	mean 56352.85 (minimum 7, maximum 133879)

Descriptive Data: (report abuse)

Born in St. Petersburg (USSR) in 1965 and grew up in the then-secret Nuclear Federal Center town called Arzamas-16 (now Sarov). I graduated with M.Sc. in applied physics and math from Phystech in Moscow suburbs in 1988 and then worked towards a PhD at the Russian Academy of Sciences while my lab slowly collapsed in the tumultuous 1990s. When a research opportunity opened up in 1994 to join a computational biology lab at New York University, I hesitantly took it but liked it so much that never moved back. Since 1999, I moved from New York to San Diego where I worked at a Genomics Research Institute for 17 years and now Rady Children's Institute for Genomics for another ten. My interests are in computational biophysics, data science, and genomics. I was lucky to be at the right moment in the right place for research revolution in genomics, so I have papers in Nature, Science, Cell etc, and have h-index = 49. My latest research is helping to advance precision medicine field, enabling fast genetic diagnoses for critically ill newborns. Recreational mathematics is a hobby that keeps my brain flossed over decades.

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

I am Serge Batalov 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.