KEP reported that k=3677878 is complete to n=327K with no primes and continuing on.

That will be a doosie if he can finally find a prime for that one! :smile: Although it wouldn't be the largest prime that CRUS has found at this point, it would be the largest n-value that CRUS has found a prime for a base > 2. That even includes other power-of-2 bases!


Gary

I have embarked upon what has turned out to be a rather interesting conjecture all by itself for both Riesel and Sierp base 3. That is, test all k's that are perfect squares and cubes up to the conjectured k-value on both sides.

I did this because I wanted to mostly eliminate the possibility that there are algebraic factors that make a full covering set on base 3. Note that this would not entirely eliminate that possibility but it does reduce it substantially if I can find primes for all of the squared and cubed k's.

What made it interesting was that while I easily found primes for all k's that were cubes on both sides, the squared k's have 1 k remaining on the Riesel side and 2 k's remaining on the Sierp side; highly provable but tough enough to make it a fun effort. Here is what I found:

Riesel conjecture: 63064644938
63064644938^(1/3)=~3980
so test all even cubes up to 3980^3
63064644938^(1/2)=~251127
so test all even squares up to 251127^2

Sierp conjecture: 125050976086
125050976086^(1/3)=~5000
so test all even cubes up to 5000^3
125050976086^(1/2)=~353625
so test all even squares up to 353625^2

Riesel cubes: all quickly found prime
top 10 primes:
1108^3*3^115-1
1528^3*3^119-1
2696^3*3^122-1
2384^3*3^131-1
582^3*3^142-1
1352^3*3^184-1
1050^3*3^209-1
3614^3*3^212-1
1918^3*3^679-1
1754^3*3^1625-1

Sierp cubes: all quickly found prime
top 10 primes:
3138^3*3^164+1
1544^3*3^178+1
1132^3*3^268+1
4528^3*3^274+1
2896^3*3^295+1
1672^3*3^316+1
4078^3*3^316+1
4198^3*3^337+1
4684^3*3^383+1
1394^3*3^589+1

Riesel squares: 1 k remaining at n=63K:
216584^2 = 46908629056

top 10 primes:
218282^2*3^10979-1
228544^2*3^13869-1
231950^2*3^14289-1
146392^2*3^16715-1
224030^2*3^17189-1
168466^2*3^20389-1
208082^2*3^25021-1
41662^2*3^26573-1
161048^2*3^29091-1
211342^2*3^36943-1

Sierp squares: 2 k's remaining at n=60K:
105164^2 = 11059466896
303362^2 = 92028503044

top 10 primes:
118058^2*3^4733+1
331076^2*3^7319+1
150756^2*3^7625+1
321236^2*3^7807+1
142196^2*3^8840+1
279784^2*3^10037+1
132998^2*3^10519+1
70702^2*3^18811+1
110888^2*3^18905+1
221674^2*3^33027+1


Note: All applicable MOB were removed.

I am taking the final 3 k's up to n=100K or prime. After completing, I'll show the applicable k's remaining/primes found on the regular base 3 conjectures/reservations/primes web pages.

Although more were eliminated at lower n-ranges, it turned out that there were more Sierp k's remaining than Riesel k's as the Riesel's scored many more primes for n>10K. This was surprising because Riesel k's must have an odd-n prime because of algebraic factors on even-n and so have half as much chance overall of finding a prime by a specific n-level. The higher conjecture was part of it.

If you have any stubborn k's that are perfect squares on Riesel or Sierp base 3, let me know and I'll give you the prime for them except the above 3 that are remaining.


Gary

I see karbon got my range, and I don't blame you.

I have a friend who's programmed big-time stuff in the past, but these days he's a bit(!) absent-minded. My intention was to crunch the ks up to n=2000 and then use a combination of sieving, LLR, and some scripts he was going to make for me. Well, I'm still waiting for the scripts and...the stress of coming back here with the bad news(I know I'm sounding like a pansy) made me stay away.

So, I have the range k=700M-800M with all the primes found at or below n=2000. I don't expect anybody to want me back on the project, but I do have a largish file with about 99.9% of the primes needed for that range of k. I would be happy to zip it and send it on if anyone wants it.

[quote=jasong;158646]I see karbon got my range, and I don't blame you.

I have a friend who's programmed big-time stuff in the past, but these days he's a bit(!) absent-minded. My intention was to crunch the ks up to n=2000 and then use a combination of sieving, LLR, and some scripts he was going to make for me. Well, I'm still waiting for the scripts and...the stress of coming back here with the bad news(I know I'm sounding like a pansy) made me stay away.

So, I have the range k=700M-800M with all the primes found at or below n=2000. I don't expect anybody to want me back on the project, but I do have a largish file with about 99.9% of the primes needed for that range of k. I would be happy to zip it and send it on if anyone wants it.[/quote]


That's OK. I'm sure Karsten is well past n=2000 right now.

Jason, I/we have no problem if you want to reserve a file on one of our drives for an easy effort on this project. You just have to make sure you finish it in the time that we suggest in the 1st post of the drive and then post all the results.

A good example: You can take a file off of the Sierp base 16 drive without reserving it, try testing it for an hour and if you don't like it, don't worry about it. But if you like it (or find a prime!), then you can reserve it. Don't wait much longer than that though.

By doing that, you can also take the # of tests in the file and multiply it by your test time per candidate to get a good estimate of how long it will take to run.

One thing about base 16, Max is on a mission to finish those bases up to n=200K so if you take a file, be sure that you complete it in 1-2 weeks (more than enough time on just 1 core) with posted results or we're liable to unreserve it and assign it to someone else.

Good luck wherever you search!


Gary

Jason,

I suggest you cool your language. I made you a kind offer on one of our other efforts and you cussed us out? Yet I was mean to you earlier and you tried your hardest to please. What's up with that?

Do people have to be mean and rude to you for you to be nice in return? You must be extremely bi-polar or something. I suggest you go talk to your counselor.

Max censored one word on it and I am now deleting your post after copying in the admins of the site on it.

I think you need to find another project to work on. One that won't stress you out or take too long to run.

Edit: After several days, I'll delete my own post here since the discussion means little in the long run.


Gary

[quote]You must be extremely bi-polar or something. I suggest you go talk to your counselor.[/quote]We have a friend who has been diagnosed with bipolar disorder. This friend prefers the older designation of "manic depression" because "bipolar disorder" is a very popular catch phrase for any kind of odd/scary/homicidal behavior nowadays. According to this friend, casually painting people with the bipolar stick does a real disservice to people who actually have to deal with this illness. Apparently it can be quite debilitating and living with it, and the stigma, is very difficult.

Well, that is what he says. He could be plain nuts for all we know.

:loco:

He says he suffers with OCD and paranoid schizophrenia. :sad:

[URL]http://mersenneforum.org/showpost.php?p=51787&postcount=3[/URL]

[URL]http://mersenneforum.org/showpost.php?p=110673&postcount=6[/URL]

@ Everyone:

Please... Please... Oh my god, could we Please come back to discussing the Riesel base 3 conjecture. I'm writing this to blame no one, because mistakes has been made on either sides and maybe one can't interfere in the current debate/discussion without automatically take a side or hurt somebodys feelings. Well I hope I end up hurting no ones feelings, but now it's actually time to remind everyone that this is a forum for the Riesel base 3 conjecture and not for flaming each other.

I understand that several of you has a history with Jasong, a history that I dare not to even try to grasp, but out of personal experience with mental disabilities in my family and in some degree also with myself, I know some things that makes me feel sad that some of you allow yourself to be dragged into "the game" that you may feel jasong is playing.

I personally suffers from PostTraumaticStressDisorder, because I was attacked by a gang member back in 2006 who never got what criminals like him deserves. This PTSD however light it may be, sometimes makes me look unreasonable on things. This has also been the reasons why I could look "flighty" in many contributors eyes because I seemed to reserve a lot of work and loose interest in it once I realised how long time it took. Now I've finally begun understanding the conjectures and it makes it easier for me to reserve a fair and desireable range of work.

However having mental disabilities is no excuse to continue following the same pattern of reserving and then leaving without completing or giving notes on progress. I understand Jasong has done that previously but if Jasong really has seeked councelling and at least improved somehow, we should all prove ourself better people and show signs of forgiveness.

Living with mental disabilities however treatable they may be or may not be, can infact be a disability. My twin-brother who suffers from a severe and difficult depression suffers occational setbacks in his treatment, though overall improving, but a sad fact is that now he has been out of school or work for 7 out of the past 8 years because of his depression. So having a mental disability can in fact be a bad and disabilitating thing both for keeping friends, family and jobs.

So Jasong I can tell you, that you may have stepped on quite a few feets in these forums, but I think that there is a lot of big hearts on this forum, so maybe you should try and tell people how in fact you have improved and in the future be more clear on how you're going to do stuff and what time you expect to use on it and then give a date of completion.

And to the rest of you. Do yourself a favor and show the better sides of your hearts, and don't let yourself be dragged into Jasong's setbacks. Mental disabilities unfortunantly is hard to deal with and often the treatment of mental disabilities takes a long time (in rare occations entire lifes) and usually the treatment procedures is also connected with a lot of setbacks. So though you propably all mean well when aiming at Jasong and some of you propably just tries to make a joke. Then please consider that maybe Jasong doesn't see it as a joke, maybe he in fact sees it as an attack which causes him to feel justified to get back on you somehow, and then the entire circus starts all over again.

So everyone no matter of history of bad friendships or of standing down other projects/members, shouldn't we all just try to improve and move on and show the regular friendly tone that normally surrounds the discussion on this forum.

With a sincere appology for my long reply, I ask for your forgiveness if anyone feels like I took someones side or attacked him/her personally. Sorry if I mispelled some words or if something sounds bogus, english is my semi-fluent language so I make mistakes but at least I put my heart and soul in it when I try to communicate with other users on this message board.

Now I'll finish up with a big :smile:

Take care

Kenneth

[quote=Xyzzy;158842]We have a friend who has been diagnosed with bipolar disorder. This friend prefers the older designation of "manic depression" because "bipolar disorder" is a very popular catch phrase for any kind of odd/scary/homicidal behavior nowadays. According to this friend, casually painting people with the bipolar stick does a real disservice to people who actually have to deal with this illness. Apparently it can be quite debilitating and living with it, and the stigma, is very difficult.

Well, that is what he says. He could be plain nuts for all we know.

:loco:[/quote]

[quote=Flatlander;158844]He says he suffers with OCD and paranoid schizophrenia. :sad:

[URL]http://mersenneforum.org/showpost.php?p=51787&postcount=3[/URL]

[URL]http://mersenneforum.org/showpost.php?p=110673&postcount=6[/URL][/quote]


I probably should have said OCD instead since that has been openly acknowledged, which would explain the outburst by Jason. Thanks for the referenced posts Chris.

Over-generalization on my part...no offense to folks who struggle with manic depression.

As Kenneth says, back to the Riesel base 3 conjecture:

As stated in a prior post, I'm working on all of the squared k's on both sides.

I have now completed all Riesel base 3 squared k's to n=100K. One k remains:
k=216584^2=46908629056

This k is now unreserved.

It might be an interesting effort for someone to prove the "Riesel base 3 squared k conjecture" so take it from n=100K if you want.


I am still running Sierp base 3 squared k's to n=100K. 2 k's still remain at n=90K:
k=105164^2 = 11059466896
k=303362^2 = 92028503044

I'll release those at n=100K or prime.


All 3 k's are now shown on the web pages. I'll update their limits shortly.


Gary

Posting this here since I've been combining it with the Riesel side:

All Sierp base 3 squared k's have now been tested to n=100K.

2 k's still remain and are now unreserved:
k=105164^2 = 11059466896
k=303362^2 = 92028503044


Gary