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-   -   Sierpinski/Riesel Base 5: Post Primes Here (https://www.mersenneforum.org/showthread.php?t=3125)

michaf 2007-07-08 20:26

Gee!!

Gogogo!

masser 2007-07-16 02:09

119098*5^193933-1 is prime!
 
This one had a high weight: 1027 - so this find should remove a large number of tests from the dat file.

tnerual 2007-08-05 23:41

167246*5^195250-1 is prime
 
a new one ...:smile:

i was doing the +1 since a while, i just switched 3 core to -1 one week ago and yeah a fabulous gift: a new prime:

167246*5^195250-1 is prime (around top 1250 in primelist)

it's a medium weight k (535) so it will remove around 20000 k/n pair from the sr5data file

let's go for a new one !

time to test : 5601.166 sec on a centrino-duo 1600Mhz

tnerual 2007-08-13 17:19

one more in the spotlight ...

31738*5^196001-1 is prime

137004 digit

place 1250 in top 5000

[QUOTE]LLR tests only k*2^n1 numbers, so, we will do a PRP test of 31738*5^196001-1
31738*5^196001-1 is a probable prime. Time: 4892.427 sec.
Please credit George Woltman's PRP for this result!
Result 31738/196001 succesfully sent to the server.[/QUOTE]

on my athlon 2500+

masser 2007-08-17 22:53

213056*5^195968-1
 
213056*5^195968-1 is prime!

birdman2584 must be on vacation - one of his machines found this prime on Monday and he hasn't posted it on the forum or responded to pm/email.

213056 is a fairly high weight sequence, so this find will shrink the dat file some and remove many candidates from the testing queue.

tnerual 2007-08-19 21:48

a prime a week is my new way of life :smile:

127756*5^196729-1 is prime

[QUOTE]LLR tests only k*2^n1 numbers, so, we will do a PRP test of 127756*5^196729-1
Result 165452/196726 succesfully sent to the server.
127756*5^196729-1 is a probable prime. Time: 2976.169 sec.
Please credit George Woltman's PRP for this result![/QUOTE]

on one core of my athlon X2-4200EE

more than 15000 k/n pair removed from the database !

edit: place 1250 as usual !

ltd 2007-08-20 17:42

Looking at the stas we can see that we have reached a new small milestone with this latest finding.

We are now below 3 Million untested values in the riesel queue.

tnerual 2007-09-15 19:42

once again it's me :wink:

155056*5^199913-1 is prime

about 13645 removed from dat file ...

new milestone reached :almost all riesel test are done up to 200k ... (24 to go)

place 1216 i think

masser 2007-09-24 16:39

After a long drought on the Sierpinski side,
...rover found that

5114*5^268127+1 is prime!

This was a nice find, as rover was slowly, but steadily, attacking the Sierpinski queue.

birdman2584 2007-09-24 16:50

congrats!

axn 2007-09-26 04:46

[QUOTE=masser;114973]After a long drought on the Sierpinski side,
...rover found that

5114*5^268127+1 is prime!

This was a nice find, as rover was slowly, but steadily, attacking the Sierpinski queue.[/QUOTE]

The prover code doesn't credit the project or srsieve :sad:


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