20191001, 15:21  #1 
"KarlHeinz Hofmann"
Jan 2017
Gr.Rohrheim Germany
3^{3} Posts 
Nearly all Factors up to 2^71 found between 2.86 G and 2.96 G
Only a few days left to complete my search up to 2^69 between 2900 M and 2950 M.
My Question is: Who is the person, which is searching between 2800 M and 2900 and above 2950. Gruß Kalli Hofmann 
20191001, 16:58  #2  
"Sam Laur"
Dec 2018
Turku, Finland
2×3×5×11 Posts 
Quote:
So, after hansl factored everything up to 2^55 for exponents up to 10G, I started looking at the range 5564. I started at 2800M and have finished up to 3160M now. To avoid duplication of work, it would be nice to let people know what you're doing, especially James Heinrich... 

20191001, 17:46  #3 
"KarlHeinz Hofmann"
Jan 2017
Gr.Rohrheim Germany
1B_{16} Posts 
Hello Nomead
Nice to hear from you. First I want to finish my work, before I submit this to James. I run a GTX 1070 on a I7 and a GTX 1060 on a I5. The 1070 needs about 5.1 seconds/M for 2^67 to 2^69 and the 1060 needs 6.5 seconds/M for 2^67 to 2^69. I have done the work up to 2^67 earlier (January  June), since the Level for unfactored M´s rised from 67 to 69. Let me know if we can do something else together for the community. (I´m enviously on your RTX 2080) sydämelliset terveiset Kalli :)

20191002, 09:07  #4 
"Sam Laur"
Dec 2018
Turku, Finland
2·3·5·11 Posts 
Well... it seems that I duplicated some work, but it's not a big deal. However, I found this. You may have missed a factor of M2920306283, the latter one, 141743326582075753 with 56.976 bits.

20191002, 10:29  #5 
Romulan Interpreter
Jun 2011
Thailand
2^{5}×5×59 Posts 
I changed the thread title to reflect what you are doing.
29,00M is confuse, I was always thinking you are looking for factors in 29M and didn't know why you only go to 69 bits 
20191002, 15:31  #6 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
2^{3}·11·107 Posts 
I moved this thread to where it will be noticed by relevant group

20191105, 11:52  #7 
"KarlHeinz Hofmann"
Jan 2017
Gr.Rohrheim Germany
3^{3} Posts 
Finished
I have finished the Mission. All factored and non factored M´s are done up to 2^69. between 2,90 G and 2,95 G. Does anyone knows, who has done the work between 2,93 G and 2,94 G from 2^69 to 2^71 ? And my question is: Are the factored M´s tested for further factors too? Greetings Kalli

20191105, 14:11  #8 
"James Heinrich"
May 2004
exNorthern Ontario
3356_{10} Posts 
On a global scale, HansL has been systematically checking the entire 1G10G range, not stopping after finding the first factor, and that has been done up to 2^57. Above that it is handled on an individual result basis: if your mfaktx result line says that the bitrange was tested completely after finding a factor then it as marked as such, otherwise it is assumed that factoring is stopped after finding the first factor.

20191105, 14:34  #9  
Apr 2013
165_{8} Posts 
Quote:
I'm not continuing after a factor has been found but I can change that if this is desired. 

20191105, 17:51  #10  
Apr 2019
5×41 Posts 
Quote:
I also recently did 3G10G to 2^57, but I temporarily stopped in the middle of processing 1G3G to 2^57. So parts of that range are not completely done to 2^57. I don't know off the top of my head the exact ranges I covered so far, but I plan to pick it back up soon and complete the job. 

20191106, 08:45  #11 
"KarlHeinz Hofmann"
Jan 2017
Gr.Rohrheim Germany
1B_{16} Posts 
@ramgeis : It's me, between 2940 M and 2950 M up to 2^69. But not from 2^69 to 2^71.
Between 2,90 G and 2,93 G (up to 2^69), I made a big Mistake. I filtered my own results in a way, that only the "not listed factors" were left. I deplore that the "no factor" results got loose. But "no factor" results are important too, now I know. I will do this work again. Gruß Kalli Last fiddled with by Kalli Hofmann on 20191106 at 08:53 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
How are such big factors found? (M1193)  heliosh  PrimeNet  7  20180124 16:54 
Biggest factors found by P1  TheMawn  Lounge  29  20141214 12:43 
No factors found  aketilander  PrimeNet  9  20110517 11:32 
Fermat 12 factors already found?  UberNumberGeek  Factoring  6  20090617 17:22 
How to find factors I found with TF?  edorajh  PrimeNet  3  20041001 19:16 