2010-12-08, 00:51 | #1 |
Dec 2009
Peine, Germany
331 Posts |
ECM curve group order
It may be a dumb question but I haven't found the answer yet:
Given: ECM factoring result: 2^exponent-1,B1, B2, Sigma, Factor found Needed: Group order of the ecm curve (not the factor itsself) What is the fastest way / best program to the the ecm group order? All I have found is this. A hint would be appreciated. Thanks. |
2010-12-08, 01:00 | #2 |
(loop (#_fork))
Feb 2006
Cambridge, England
1100100110110_{2} Posts |
http://www.mersenneforum.org/showthread.php?t=14184
put in your p and sigma then copy-and-paste the code in the box into the box on http://magma.maths.usyd.edu.au/calc/ |
Thread Tools | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Group order not accepted for some GMP-ECM factors? | rwwh | FactorDB | 2 | 2015-06-19 06:26 |
Number of groups for given order | Raman | Puzzles | 6 | 2010-09-05 17:43 |
What is this group? | wpolly | Math | 1 | 2008-06-09 12:14 |
Forum order? | Xyzzy | Forum Feedback | 5 | 2007-01-28 10:35 |
A property about the order of divisors of (Mq-1)/2 | T.Rex | Math | 3 | 2005-11-14 18:23 |