20171017, 19:54  #1 
Oct 2017
3 Posts 
Manual testing tab doesn’t give me the exponent i typed in.
I don’t know if I'm doing anything wrong or if that's just the way its set up, but whenever I go to the manual testing tab and type the exponent I want to see if its prime, it gives me a different one. How do I get the exponent I typed in or do I even need to use that to test the exponent I want, can I just type the exponent into the software and then submit the results without even using the manual testing option?

20171018, 00:21  #2 
"Matthew Anderson"
Dec 2010
Oregon, USA
2·5·67 Posts 
Hi boss,
Welcome to Mersenneforum. I am unable to answer your question but I'm sure some people in this forum can. I always just choose 'whatever makes sense' in one of the menu options. Regards, Matt 
20171018, 00:39  #3  
"Forget I exist"
Jul 2009
Dumbassville
20C0_{16} Posts 
Quote:


20171018, 01:17  #4 
P90 years forever!
Aug 2002
Yeehaw, FL
2×3^{2}×409 Posts 
This page might tell you more: https://www.mersenne.org/report_exponent/

20171018, 11:31  #5 
Oct 2017
3 Posts 
I look up the prime number I want to factor using the link on the post below yours (I already knew about it) and it says “No Factor under 2^XX” so I go to the manual testing tab and put in the exponent, click on trial factoring because I use a GPU, and it gives me a completely different number. I look and and the most recent update was a trial factor and it has been assigned but the person is doing ECM factoring. For example, I typed in 1277, this exponent has not been factored or determined prime, it gave me No trial factoring found, and it assigned me an ECM, when I go above 100 million it usually gives me a different number compleatly. Is this because it doesn’t want me to do that exponent with trial factoring and is there a way to avoid that?

20171018, 11:50  #6  
"Forget I exist"
Jul 2009
Dumbassville
10000011000000_{2} Posts 
Quote:


20171018, 15:25  #7 
P90 years forever!
Aug 2002
Yeehaw, FL
2·3^{2}·409 Posts 
The smallest exponent available for trial factoring with prime95 is around 171.2 million.

20171018, 19:17  #8 
Oct 2017
3 Posts 

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