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New range search.

  Last update : 20 Sep 2017
 
Factoring  work :   191,876.957 P_II/400 CPU years
Ecm work : 5,629.938 P_II/400 CPU years
Gfn work : 5,575.800 P_II/400 CPU years
Cumulative work : 203,082.695 P_II/400 CPU years

Active users : 20
Total users : 154

 

OK, you read some of the Fermatsearch pages, you understood some of the backgrounds of the search and learnt its history.
Now what? You found yourself willing to help the search, but there are still some questions you need answered, i.e. where should I start my search?

The first thing to do is to decide what kind of work you want to do. If you want to do some ecm curves, go to ecm link, and follow the instrucions.
If you prefer working with old-fashioned, simpler trial-factoring, download  fermat.exe or GMP-Fermat in a folder of your choice, and launch it.
There are four values you need to input: From N, To N, For k and To k.

Now it's time to decide our values.
The table below shows an example of research for N=30.

From N To N From k To k Researcher Status
30 30 2,000,000,000,000 5,320,000,000,000 Phil Moore factoring
30 30 5,320,000,000,000 30,000,000,000,000 Vladimir Knotko factoring
30 30 30,000,000,000,000 35,000,000,000,000 Luigi Morelli factoring
30 30 35,000,000,000,000 60,000,000,000,000 Stefan Gerhold factoring
30 30 60,000,000,000,000 70,000,000,000,000 Stephen Schroder factoring
30 30 70,000,000,000,000 75,000,000,000,000 Konstantin Khodayev factoring
30 30 75,000,000,000,000 150,000,000,000,000 Takahiro Nohara factoring
30 30 150,000,000,000,000 200,000,000,000,000 Matt Anderson factoring
30 30 200,000,000,000,000 400,000,000,000,000 Tapio Rajala factoring
30 30 400,000,000,000,000 500,000,000,000,000 Stefan Kucher factoring
30 30 500,000,000,000,000 550,000,000,000,000 Fabrice Le Foulher factoring
30 30 550,000,000,000,000 600,000,000,000,000 Rick van der Hoorn factoring
30 30 600,000,000,000,000 650,000,000,000,000 Rick van der Hoorn factoring
30 30 650,000,000,000,000 700,000,000,000,000 Fabrice Le Foulher factoring
30 30 700,000,000,000,000 1,000,000,000,000,000 Fabrice Le Foulher factoring
30 30 1,000,000,000,000,000 2,000,000,000,000,000 Tapio Rajala factoring
30 30 2,000,000,000,000,000 3,000,000,000,000,000 Takahiro Nohara factoring
30 30 3,000,000,000,000,000 5,000,000,000,000,000 Takahiro Nohara factoring
30 30 5,000,000,000,000,000 10,000,000,000,000,000 Luigi Morelli factoring
30 30 10,000,000,000,000,000 100,000,000,000,000,000 Marvin Lukasik factoring
30 30 100,000,000,000,000,000 110,000,000,000,000,000 Marvin Lukasik Reserved
30 30 110,000,000,000,000,000 200,000,000,000,000,000 Marvin Lukasik Reserved

Now let us try some searches on the database tables. Just input starting and ending values of N in the boxes below, press the button and check the possible searches.
You may use the testing link to time your calculations.

Note that ranges are not always taken homogeneously, so it is advisable to test wider n-ranges , check the work done and then redefine a smaller range.

Still feeling puzzled? Don't worry, just follow the link towards available ranges.

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