WE MADE IT!!!!!!!!!!!!!!!!!!!!!!

[thommy]

yeah who could steal it. it is posted here and a short mail to the prime pages could correct it.
anyway, this twin was found out of primegrid, is that right? i dont see the info here.

[jmblazek]

Originally Posted by thommy

anyway, this twin was found out of primegrid, is that right? i dont see the info here.

It was found in the manual search. See this post for the reservation:

http://www.mersenneforum.org/showpos...56&postcount=1

PG supplied a lot of computing power...~70% of the total k's tested. The top M & prime finder is Skigmund from PG.

With this extra help, TPS found the twin about twice (2x) as fast as it would have by manual alone.

Once again, congratulations to all!

[Cybertronic]

Originally Posted by jmblazek

It was found in the manual search. See this post for the reservation:

http://www.mersenneforum.org/showpos...56&postcount=1

PG supplied supplied a lot of computing power...~70% of the total k's tested. The top M & prime finder is Skigmund from PG.

With this extra help, TPS found the twin about twice (2x) as fast as it would have by manual alone.

Once again, congratulations to all!

Yes, so is it! For futher we create a webpage TPS via GIMPS . The name of finder is position one and than TPS-team with other backgrounds or so. Also I scan 2695M without success,but this is not relevant.

[pacionet]

I still miss MoooMoo, Gribozavr and rytys info's. (name, surname, age and country).

The official communicate can be:

"Today, January 15, 2007 two distributed computing project, Twin Prime Search and PrimeGrid (BOINC platform) have found the largest known twin primes, 2003663613*2^195000-1 and 2003663613*2^195000+1 . The primes have 58711 decimal digits. The discoverer is Eric Vautier, from France.
Special thanks for this discovery go to: < NAME, SURNAME and COUNTRY of me, mooomoo, rytys, gribozavr and skligmund > and all the contributors of the two projects."

Do you agree ?

[pacionet]

Wolfram site have added our discovery:

http://mathworld.wolfram.com/TwinPrimes.html

I 'll ask them to add also the name of the people who gets credits in the table.

[pacionet]

Okay it should be more accurate this version:

"Today, January 15, 2007, the Twin Prime Search project in collaboration with PrimeGrid (BOINC platform) found the largest known twin primes, 2003663613*2^195000-1 and 2003663613*2^195000+1.
The discoverer is Eric Vautier, from France.
Special thanks go to <Pacionet, MoooMoo , gribozavr, rytis, skligmund (real names and surnames) > and all the users of the project.
"

[jasong]

Statiscally speaking, how much harder will n=333,333 be, compared to n=195,000?

[Cybertronic]

Originally Posted by jasong

Statiscally speaking, how much harder will n=333,333 be, compared to n=195,000?

I say round 8.5 times harder. One twin every 45G. Test a number of this size takes 5 minutes on (3 Ghz P4)
up to 15 (Athlon 2Ghz).

[arminius]

Congratulations!

[R. Gerbicz]

Originally Posted by jasong

Statiscally speaking, how much harder will n=333,333 be, compared to n=195,000?

Here it is a table for n=333333 (testing only odd k values):

k=5 G chance of finding a twin: 0.1163231920391812909933055240
k=10 G chance of finding a twin: 0.2191152990721783323150315761
k=15 G chance of finding a twin: 0.3099503000986639810061836904
k=20 G chance of finding a twin: 0.3902190838568665098917944285
k=25 G chance of finding a twin: 0.4611507464672121298608498732
k=30 G chance of finding a twin: 0.5238314116660761009785109263
k=35 G chance of finding a twin: 0.5792208618098689908191591902
k=40 G chance of finding a twin: 0.6281672343076408025625957390
k=45 G chance of finding a twin: 0.6714200085177330022125107395
k=50 G chance of finding a twin: 0.7096414819671572990522529816
k=55 G chance of finding a twin: 0.7434169116205037444478260993
k=60 G chance of finding a twin: 0.7732634754840781128954607619
k=65 G chance of finding a twin: 0.7996381917676402313719934911
k=70 G chance of finding a twin: 0.8229449168639706316634816352
k=75 G chance of finding a twin: 0.8435405293011161847283258498
k=80 G chance of finding a twin: 0.8617403943575711050079768601
k=85 G chance of finding a twin: 0.8778231930159768345477774792
k=90 G chance of finding a twin: 0.8920351891975133471821980606
k=95 G chance of finding a twin: 0.9045940006179648768444499818
k=100 G chance of finding a twin: 0.9156919310057713600503113176

At least the first 4 digits is correct. I've computed this by a modified own (PARI) program.
About every 40G range contain one twin prime pair.

[pacionet]

MooMooo has not answered yet.