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Old 2004-05-10, 12:37   #1
junky
 
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Default next after 2_1137P

we almost reached the 90% for the 2_1137P, that's great.
what's i'd like to know now, is what's the next number ?
another Cunningham Project's number ?
Thanks in advance.
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Old 2004-05-10, 13:38   #2
xilman
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Quote:
Originally Posted by junky
we almost reached the 90% for the 2_1137P, that's great.
what's i'd like to know now, is what's the next number ?
another Cunningham Project's number ?
Thanks in advance.
Yes, it is another Cunningham Project number. This time it is a "More Wanted Number" and is 11^206+1 which has a 213-digit cofactor. Indeed, there are no known factors of this number other than the trivial algebraic factors.

We stand a fair chance of finding a factorization where both factors have more than one hundred digits. Only a single example of such is known at present.


Paul
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Old 2004-05-10, 16:43   #3
junky
 
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any estimated time to complete tha one ?
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Old 2004-05-14, 21:54   #4
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11^206+1 ( aka 11_206P ) has started.
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Old 2004-05-14, 22:54   #5
junky
 
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whats the estimated time for that project ?
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Old 2004-05-14, 23:07   #6
dsouza123
 
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Maybe it can be calculated from the information from the following URL

http://www.nfsnet.org/stats2/statsre...roject=11_206P

So far stats are 0.36% complete (27.6288 of 7500 workunits)
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Old 2004-05-14, 23:40   #7
Wacky
 
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I expect progress to pick up rapidly now that most of the workers have been released from the previous project.

However, "the survey shows" that 7500 may be a bit low for the estimated work required. Today, I would suggest 7700 WU.
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Old 2004-05-15, 09:51   #8
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Default Sieving for 2,1137+ is finished

I am pleased to announce that the sieving for 2,1137+ is now complete.

We collected 46M relations which I am now in the process of reducing to a matrix to solve for the factors.

Those of you who are short on hard disk space should delete the files for the factor base by removing the projects/2_1137P_2/ folder.

Thanks to all who participated.

We are now sieving another Cunningham number, 11,206+. You might check to make sure that all of your sievers made the transition.
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