Search:

Congratulations to all the participants of the SB.
Specially to Randy Sundquist and his Team ExtremeDC, Louie and Dave.

Now the SB can be really proud of discovering finally a really big and...

mklasson, smh
Thank you for your useful comments.

You have almost fixed both of the problems.


There are still primes 2213, 2221, 2237, 2239, 2243, 2251 between 47^2 and my practical B1...

Contrary to my previouse post
which was essentially a bug report,
here is some bonus:

B1=10000
B2=100000
539336741813170023987503 | 15*2^4000+1
p-1 = 2 * 7 * 17 * 17599 * 42406229 *...

Hi

I am using sbfactor for prothsearch. It is really marvelous.
Many thanks to everyone involved in its developement.

But I have encountered a small problem with B1.

For detecting the prime...

I think that the PrimeNumbers list is the appropriate place for this discussion.

- Payam

Because, it is *the* first different k, among all the odd numbers.

See http://sierpinski.insider.com/4847_history for a brief history of such k's.

- Payam

PS. Considering the dual Proths,...

>>>
A possible solution may be to reserve the lowest k (4847) for slow machines ....
<<<

:shocked:

That lowest k is the most important, thus needs the fastest machines.

Just a note
Payam

Louie
Thanks
Payam:)

I also seriousely need these two features:

(a) hide the icon
(b) provide two services, (the additional one for dual processors)
(c) really uninstall the client
(d) really idle
(e) lock the...

It is not easier when we are considering the same n.

There is some minor situations which must be considered:

(1) the easy making part: The original candidates have been searched up to high n...

There are 3 different problems:

(1) original Sierpinski problem, Which asks about the smallest k, such that k*2^n+1 is composite for all n. SB have sucessfully removed 5 hard candidates out of 17....

Hi

I have started a new thread about k=28433 sieve. New results from Joseph Arthur up to 318G.

Payam

Hi All

The latest result for k=28433 sieve up to 318G by Joseph Arthur is attached.

If Louie have not started his sieve on this special k-value it is free for everyone to start the sieve.
...

Thanks, Sander

I will include them in http://sierpinski.insider.com/4847

Payam

David, Louie

Why didn't you submit the primes in Caldwell's list?
You can enter all except the 3rd, for which the discoverer is not yet discovered.

Just click...

Sander

May I request the list of removed numbers? Your attached file does not contain them.

Payam

> That URL is incorrect :(

Now it is corrected.

Payam ;)

Here is the links to the dual proth searches:

http://sierpinski.insider.com/28433
http://sierpinski.insider.com/dual

Just for those, who have not involved or informed yet, dual Proths are...

Again congratulations to all the members of SB team :|party|:

and still waiting for the next one :)

Payam :rotfl:

I think this discussion needs a new thread

Payam

This is the best suggestion for this project.

But it is needed first to wait for the project to reach at least to exponents near the bust limit n=10,000,000 and if it was not able to reach to its...

Louie had kindly informed me when its primality test was %50 done.

>>>>
Also, I have very recent and very great news! We are about to become 15 or bust! We had another positive PRP submission a...

My deepest congratulations to all of the SB team members.
:|party|: :|party|: :|party|:

still waiting for the next one

Payam :thumbs:

Be sure
This is the first time that the sieve results for this k is published.

Payam

Hi
Here is all the information which I have about sieves:

k=33661 is sieved by Louie up to 1000G.

Almost all of the k values are sieved by approx. 80 G by Phil Carmody and approx. up to 200G...