The probable primes - Page 31

Puzzle-Peter · 2012-08-10, 18:01

Status update:

Test 196 Bit 49147/56367
Test 153 Bit 55754/61793

The smaller one is noticeably picking up speed.

Puzzle-Peter · 2012-08-11, 06:14

Quote:

Originally Posted by philmoore

Primo generates a list of prime numbers:
P1 > P2 > P3 > ... > Pn plus a set of elliptic curves for each consecutive pair. P1 can be proven prime if P2 can be proven prime, P2 can be proven prime if P3 can be proven prime, and so on. The elliptic curve provides the proof.

If I understand this correctly, each Primo run not only proves the candidate, but also all the intermediate numbers P1...Pn. Would it be worth the work to collect these so if another run happens to stumble across one of them the rest of the proof could be "recycled"? Don't know about the chances of something like this happening though...

henryzz · 2012-08-11, 16:32

Quote:

Originally Posted by Puzzle-Peter

If I understand this correctly, each Primo run not only proves the candidate, but also all the intermediate numbers P1...Pn. Would it be worth the work to collect these so if another run happens to stumble across one of them the rest of the proof could be "recycled"? Don't know about the chances of something like this happening though...

The chances of this happening is so small. The chance of hitting each number at size ~2^n is around 1 in 2^n. n is > 50000 so the chance is very small indeed. 2^50000 is much larger than the number of numbers in the factordb even. By the time the numbers get small enough that it could happen it would be faster to regenerate it.

Puzzle-Peter · 2012-08-12, 05:56

That would be any random number. As all our numbers need to be primes the probability would be much greater. Still too small though.

Puzzle-Peter · 2012-09-10, 14:49

The larger of the two runs crashed without writing a .tmp file. The screenshot shows the latest files. I sent this to M. Martin and I hope he can tell me how to resume this.

Puzzle-Peter · 2012-09-11, 17:12

I was able to reconstruct a .tmp file so only one day of work was lost.

Puzzle-Peter · 2012-09-14, 16:39

Status update:
Test 401, Bit 41779 / 56367
Test 264, Bit 51633 / 61793

Puzzle-Peter · 2012-10-22, 11:05

Who should be credited when submitting to the TOP5000 list? These numbers are small but they still make the TOP20 ECPP list.

Puzzle-Peter · 2012-10-22, 18:05

Never mind. I just copied what Cybertronic used.

The certificate for 2^56366 + 39079 can be found here:

http://www.sendspace.com/file/y8jrn1

The other test is down to 44000 bits. I hope I can finish it this year.

Batalov · 2012-10-22, 18:58

Congratulations!

I'll run a validation.

Did you try to submit it to factordb? It will do a linux-based validation, too (unless you will hit a limit that Markus may have set). I've submitted it on your behalf. The link to factordb is going to be better than sendspace (when it is processed).

Puzzle-Peter · 2012-10-22, 19:43

Thanks!

Factordb? I think I've read this before but honestly I don't even really know what it is. I can guess from the name though. But this numbers does not have any factors. I am confused. I think I need to do some reading...

2012-09-10, 14:49	#335
Puzzle-Peter Jun 2009 2²×5²×7 Posts	The larger of the two runs crashed without writing a .tmp file. The screenshot shows the latest files. I sent this to M. Martin and I hope he can tell me how to resume this. Attached Thumbnails

2012-10-22, 18:05	#339
Puzzle-Peter Jun 2009 2²×5²×7 Posts	Never mind. I just copied what Cybertronic used. The certificate for 2^56366 + 39079 can be found here: http://www.sendspace.com/file/y8jrn1 The other test is down to 44000 bits. I hope I can finish it this year. Last fiddled with by Puzzle-Peter on 2012-10-22 at 18:07

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2^9092392+40291 is a probable prime!	engracio	Five or Bust - The Dual Sierpinski Problem	91	2023-03-06 21:22
generalized minimal (probable) primes	sweety439	sweety439	140	2022-12-20 07:08
probable largest prime.	sudaprime	Miscellaneous Math	11	2018-02-05 08:10
Hi, how can I test my probable prime number?	mohdosa	Information & Answers	22	2014-10-10 11:34
Record probable prime found!	philmoore	Five or Bust - The Dual Sierpinski Problem	18	2009-01-28 19:47

2012-08-10, 18:01	#331
Puzzle-Peter Jun 2009 2²×5²×7 Posts	Status update: Test 196 Bit 49147/56367 Test 153 Bit 55754/61793 The smaller one is noticeably picking up speed.

2012-08-12, 05:56	#334
Puzzle-Peter Jun 2009 2²·5²·7 Posts	That would be any random number. As all our numbers need to be primes the probability would be much greater. Still too small though.

2012-09-11, 17:12	#336
Puzzle-Peter Jun 2009 700₁₀ Posts	I was able to reconstruct a .tmp file so only one day of work was lost.

2012-09-14, 16:39	#337
Puzzle-Peter Jun 2009 1010111100₂ Posts	Status update: Test 401, Bit 41779 / 56367 Test 264, Bit 51633 / 61793

2012-10-22, 11:05	#338
Puzzle-Peter Jun 2009 2²·5²·7 Posts	Who should be credited when submitting to the TOP5000 list? These numbers are small but they still make the TOP20 ECPP list.

2012-10-22, 18:58	#340
Batalov "Serge" Mar 2008 San Diego, Calif. 10100000011101₂ Posts	Congratulations! I'll run a validation. Did you try to submit it to factordb? It will do a linux-based validation, too (unless you will hit a limit that Markus may have set). I've submitted it on your behalf. The link to factordb is going to be better than sendspace (when it is processed).

2012-10-22, 19:43	#341
Puzzle-Peter Jun 2009 2²×5²×7 Posts	Thanks! Factordb? I think I've read this before but honestly I don't even really know what it is. I can guess from the name though. But this numbers does not have any factors. I am confused. I think I need to do some reading...