20180207, 06:46  #1 
Feb 2018
3^{2} Posts 
i am new. How to manually test an exponent from 2^76 and up
i am new. How to manually test an exponent from 2^76 and up, because others already tested that exponent no factor up to 2^76

20180208, 01:17  #2 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
19·443 Posts 
What exponent range are you looking at? What hardware are you thinking about using?
The reason to ask those questions are: If you are looking to work on an exponent near 77,000,000 they should only be factored to about 74 or 75 bits. At 150,000,000 it should be 77 bits, etc. So, your exponent may already be at the proper level (the level that makes the most sense.) If you are going to be using a CPU, the level to Trial Factor to that makes the most sense is lower than for a GPU. Of late most of the trial factoring work on exponents (especially those that are soonest to be assigned for LL testing) has been done by GPU's. There is a whole subproject that has been focusing on that. Give us some more info and we can guide you better. 
20180208, 04:18  #3 
Romulan Interpreter
Jun 2011
Thailand
5·11·157 Posts 
He wants to test an exponent from 2^76 up.
Which is a mersenne number like \(2^{2^{76+}}1\). Let him be... Last fiddled with by LaurV on 20180208 at 04:18 
20180208, 05:34  #4 
"William"
May 2003
New Haven
2·3^{2}·131 Posts 

20180208, 11:34  #5  
Jun 2003
2×5×467 Posts 
Quote:


20180208, 13:05  #6 
Romulan Interpreter
Jun 2011
Thailand
5×11×157 Posts 
Sorry, but I don't know why I have this feeling that we are invaded by trolls in the last period. Starting with that guy who wants to factor numbers by solving equations that nobody knows how to solve, but he has no idea about elementary stuff which even me can understand...
And yes, one of my favorite jokes when I was in elementary school (this was long time ago, in the former century, when Claudia Cardinale was in vogue, and you could not buy in the shop all the diversity of sanitary stuff you can buy now, but the world was as racist as it is now, I don't think this improved in the last 40 years. Contrarily...) was about the black guy who finds a genie in a bottle and mistakenly release it, then the genie is happy and asks the black guy for a wish... and the black guy wishes to be white and be between Claudia Cardinale's legs... And the genie made him cottonwool pad. 
20180208, 14:28  #7  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
19·443 Posts 
Quote:
"There are always consequences" Last fiddled with by Uncwilly on 20180208 at 14:29 

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