20210511, 01:39  #89 
P90 years forever!
Aug 2002
Yeehaw, FL
7,541 Posts 
Bug report: Exponent 314423. The worktodo entries include a composite factor that was reported by one of the P1 runs.

20210511, 06:18  #90 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK
1001101010011_{2} Posts 
Prime95 crashed here first time and every time I start it just switches off so quickly that I don’t have time to see if any message appears. Which files should I send across to troubleshoot? My run is stopped for now.

20210511, 08:38  #91  
Jul 2020
30_{8} Posts 
Quote:
I am currently doing 503k and 504k range, but I'm very slow and only doing it irregularly with my laptop. Last fiddled with by keisentraut on 20210511 at 08:39 

20210511, 09:48  #92 
P90 years forever!
Aug 2002
Yeehaw, FL
7,541 Posts 
worktodo.txt and any save files. Thanks.

20210511, 09:49  #93  
P90 years forever!
Aug 2002
Yeehaw, FL
7,541 Posts 
Quote:


20210511, 11:10  #94 
Jul 2020
2^{3}×3 Posts 
I just had an idea how to improve P+1 factoring in case there are already known factors.
One example is 504359. This has a factor 819812563073067041 which one can find with B2=216M and I have done an unsuccessful P+1 run with B1=5M, B2=365M. If I would not have told Prime95 that factor before, than two things could have happened:

20210511, 11:11  #95 
Jun 2003
11735_{8} Posts 

20210511, 11:17  #96  
Jun 2003
3^{2}×5×113 Posts 
Quote:
Last fiddled with by axn on 20210511 at 11:18 

20210511, 11:23  #97  
P90 years forever!
Aug 2002
Yeehaw, FL
7,541 Posts 
Quote:
There is no such thing as a "proper" P+1 run. There is such a thing as a "lucky" P+1 run. Every seed finds half of the P+1 smooth factors. If a P+1 seed on M504359 finds the known factor 819812563073067041 then the seed has only a 50% chance of finding any unknown factors. 

20210511, 11:28  #98 
Jul 2020
11000_{2} Posts 
Both of you are right. P+1 can actually find both P1 and P+1 smooth factors in one and the same run... Forget about this then :)

20210511, 14:35  #99 
Einyen
Dec 2003
Denmark
6126_{8} Posts 

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