mersenneforum.org Factorize a 129-digit number
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2021-04-21, 12:29   #23
charybdis

Apr 2020

23×73 Posts

"Homework help" does not mean "get others to do all your work for you". I already gave you some advice earlier in the thread:

Quote:
 Originally Posted by charybdis But if you desperately want to know the factors of this number, the best way is to find them yourself. There's some excellent advice in this thread, particularly post #8, assuming you're running Windows. A 129-digit number should take less than a day to factor using yafu+ggnfs on a modern quad-core.

2021-04-21, 21:01   #24
frmky

Jul 2003
So Cal

2×72×23 Posts

Quote:
 Originally Posted by mersenneNoob Code: 483100240063213823403065506870079481290504898733191281212060160586898805944701565058228233588987690426223309716587384614909677337 is my second 129-digit challenge number. If factors are found put them on factordb.
This time, n^2+1 with
Code:
n = 45083353343605571545533410947717135106897526776420892595434169982645626140823520
I see this is already factored, but please don't do these for him. It appears that he has the info and tools to do these himself.

 2021-04-21, 22:00 #25 mersenneNoob   "Nigel" Apr 2021 101002 Posts Problems Anyways the numbers sometimes are pretty huge and cannot be done by email, so I must resort to nfs. But the NfS in ggnfs will not go anywhere (it cannot start) maybe my computer is spoilt
 2021-04-21, 22:35 #26 charybdis     Apr 2020 23×73 Posts If you're having problems setting up ggnfs, post in the Factoring subforum, making it clear exactly what the issues are, and there will be plenty of people willing to help you. It's almost certainly nothing to do with your computer.
2021-04-21, 22:36   #27
xilman
Bamboozled!

"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across

2B7916 Posts

Quote:
 Originally Posted by mersenneNoob Code: 483100240063213823403065506870079481290504898733191281212060160586898805944701565058228233588987690426223309716587384614909677337 is my second 129-digit challenge number. If factors are found put them on factordb.
The factors are 6250...1761 and
7728...3417

Please PM me with how much you will pay me for 72 core-hours and, if your offer is acceptable, I'll send you my PayPal account details and, on receipt of the funds, the remaining digits.

Last fiddled with by xilman on 2021-04-21 at 22:37

2021-04-22, 02:21   #28
VBCurtis

"Curtis"
Feb 2005
Riverside, CA

10100001001002 Posts

Quote:
 Originally Posted by mersenneNoob Anyways the numbers sometimes are pretty huge and cannot be done by email, [...]
I'll bite- how do you do factoring by email?

 2021-04-22, 06:59 #29 mersenneNoob   "Nigel" Apr 2021 248 Posts Typo Sorry, I meant ecm
2021-04-22, 13:37   #30
mersenneNoob

"Nigel"
Apr 2021

22×5 Posts

Quote:
 Originally Posted by charybdis If you're having problems setting up ggnfs, post in the Factoring subforum, making it clear exactly what the issues are, and there will be plenty of people willing to help you. It's almost certainly nothing to do with your computer.
The com will not run the ggnfs.

2021-04-22, 14:05   #31
charybdis

Apr 2020

23×73 Posts

Quote:
 Originally Posted by mersenneNoob The com will not run the ggnfs.
Quote:
 Originally Posted by charybdis If you're having problems setting up ggnfs, post in the Factoring subforum, making it clear exactly what the issues are, and there will be plenty of people willing to help you. It's almost certainly nothing to do with your computer.
That's about the least clear you could possibly have made it. It's unlikely that your computer won't run the ggnfs sievers: the assembly code hasn't been updated since the core-2 era, so they ought to run even on computers that are over 10 years old. Your issue probably lies somewhere else.

Are you using factmsieve.py or yafu to run ggnfs?
What error(s) are you getting? It would be useful for us to see the logfile from factmsieve.py/yafu and the output to the terminal.
If polynomial selection runs successfully and then the sievers (gnfs-lasieve4I13e etc) won't run, have you set the filepath correctly in factmsieve.py/yafu.ini?

2021-04-22, 14:39   #32
mathwiz

Mar 2019

2×109 Posts

Quote:
 Originally Posted by mersenneNoob The com will not run the ggnfs.
Why do you care about these particular numbers?

And what is the actual error you get when you try to run the factoring software yourself?

2021-04-23, 09:02   #33
mersenneNoob

"Nigel"
Apr 2021

22×5 Posts

Quote:
 Originally Posted by mathwiz And what is the actual error you get when you try to run the factoring software yourself?
When I run it just turns off

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