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Forum: Proth Prime Search

2014-03-31, 15:20

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

Congratulations! Seems to be a great...

Congratulations!

Seems to be a great day for finding million digits 11-PRPs and k=11 Riesel primes (http://primes.utm.edu/primes/page.php?id=117523)! :wink:

Forum: Proth Prime Search

2014-03-21, 10:17

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

I finished the range 700k-GM36 (GQ-only). 1 GQ...

I finished the range 700k-GM36 (GQ-only). 1 GQ found for n=792061 (already reported).

Forum: Proth Prime Search

2014-03-02, 20:53

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

(2^792061-2^396031+1)/5 is 3-PRP! (238434 digits)...

(2^792061-2^396031+1)/5 is 3-PRP! (238434 digits) :smile:

Forum: Proth Prime Search

2014-03-01, 17:18

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

Well, then running a "prefactoring stage" (as...

Well, then running a "prefactoring stage" (as Cruelty did with FacTo=48) seperatelly of the primality testing could be counterproductive...

Forum: Proth Prime Search

2014-03-01, 16:52

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

There may be a problem with LLR when looking at...

There may be a problem with LLR when looking at both sides (GM and GQ) and factoring is done in stages, e.g. first to 48 bits, then to 50 bits, and so on.

Consider for example n=702433, and let's...

Forum: Proth Prime Search

2014-02-28, 18:23

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

I completed factoring the range 700k-GM36 to 48...

I completed factoring the range 700k-GM36 to 48 bits.
The number of candidates has significantly reduced from 19197 to 9544 (10152 at 45 bits).

I will continue factoring to 50 bits and perhaps a...

Forum: Proth Prime Search

2014-02-28, 08:47

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

Meanwhile I did some factoring tests using the 32...

Meanwhile I did some factoring tests using the 32 bit version of LLR. Using just "FacTo=45" already eliminates almost half of the candidates. And I learned it the hard way that I need to turn of GM...

Forum: Proth Prime Search

2014-02-27, 16:41

Replies: 158

Sticky: Search for prime Gaussian-Mersenne norms (and G-M-cofactors)

Views: 61,698

Posted By Thomas11

I just had a look into the "gmfcandidates.txt"...

I just had a look into the "gmfcandidates.txt" file posted by Cruelty back in 2007. The range from 700k to GM36 accounts for 19197 tests. Quite a lot...

Is there a newer version of this file...

Showing results 1 to 8 of 8

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