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2018-09-21, 08:27
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#1 |
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Mar 2018
2·5·53 Posts |
ECM-challange
I offer 50$ for finding a non trivial factor of the following number:
(2^530-1)*10^160+2^529-1 Last fiddled with by enzocreti on 2018-09-21 at 08:34 |
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2018-09-21, 08:49
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#2 | |
Jun 2003
22·3·421 Posts |
Quote:
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2018-09-21, 09:35
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#3 |
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Mar 2018
21216 Posts |
ECM
Yes i know it. But factordb will never find a factor! This is a task for yafu or ecm-gmp.
Last fiddled with by enzocreti on 2018-09-21 at 09:38 |
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2018-09-21, 10:58
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#4 |
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Romulan Interpreter
Jun 2011
Thailand
7×1,373 Posts |
axn just pointed you to the fact that a factor was already found. If you are not only blabbing about those money awards, and want to put your money where your mouth is, then please donate the $50 to fdb, or to mersenneforum...
Last fiddled with by LaurV on 2018-09-21 at 11:02 |
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2018-09-21, 12:07
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#5 | |
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Mar 2018
2×5×53 Posts |
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2018-09-21, 12:24
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#6 | |
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Mar 2018
53010 Posts |
OFFER RETIRED
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2018-09-22, 06:10
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#7 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
36×13 Posts |
Does anyone have a bag of nails?
One would like to compare. Is it heavier or not than this thread.... |
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