Wednesday mprime reported:
P-1 found a factor in stage #2, B1=60000, B2=720000.
28433*2^10290193+1 has a factor: 15481222456892501
But that factor doesn't verify on the submission page?
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Wednesday mprime reported:
P-1 found a factor in stage #2, B1=60000, B2=720000.
28433*2^10290193+1 has a factor: 15481222456892501
But that factor doesn't verify on the submission page?
Try the largsieve submission page instead of the sieve submission page.
I can't submit this one either ... not on the either the normal sieve submission site or the largesieve site.
What version of mprime did you use?
I wish I knew some way to test if this is really a factor and the error is on the submission page or it is a error in mprime.
If it is an error in mprime, I think it should be reported to this forum where george will surely pick it up.
The factor is less than 2^64, so it shouldnøt be neccesary to use the largesieve submission page (but I have tried anyway).
It is version 24.6.
As it's rather easy to test I was hoping someone had a program they could test it in, or perhaps someone else might try to factor the number with another program, so we might know whether there is a factor that's just reported wrong.
I don't think we should trouble George until we know for sure that it's an error in mprime.
I am just trying to run it in mprime v.24.14, to see if it gives the same result.
I will be away from the computer for a little while, but I should be able to report the result in 4-5 hours.
According to http://www.swox.com/gmp/#TRY it's a good factor
Just paste
((28433*2^10290193)+1) mod 15481222456892501
in the demo 1 box.
The result is 0, thus a factor.
Does this mean there's a problem with the factor submission form. Didn't something like this happen a year or two ago following a s/w upate (or something) on the server. :confused:
Well seems that I didn't need to do this extra test anyhow of course v. 24.14 also found this factor... I can't igure anything other than it then is a problem with the factor submission form
Code:P-1 found a factor in stage #2, B1=30000, B2=292500.
28433*2^10290193+1 has a factor: 15481222456892501
Thanks for the link, Mike.Quote:
Probably.Quote:
Does this mean there's a problem with the factor submission form.
I think you're right, I guess should try to contact one of the admins.Quote:
Didn't something like this happen a year or two ago following a s/w upate (or something) on the server. :confused: