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Old 2009-01-12, 16:29   #5
MatWur-S530113
 
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Apr 2007
Spessart/Germany

2·34 Posts
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Hello,

this is a curve 11 digits above the nominal size of 30 digits:

Code:
 
(08/12/25)
GMP-ECM 6.1.3 [powered by GMP 4.2.2] [ECM]
Input number is ((367#)+((397#)/(367#)))/854170501969645699246152769 (122 digits)
Using B1=250000, B2=128992510, polynomial Dickson(3), sigma=280297040
Step 1 took 3235ms
Step 2 took 1687ms
********** Factor found in step 2: 12277223854594410567719074755920634852313
Found probable prime factor of 41 digits: 12277223854594410567719074755920634852313
Probable prime cofactor (((367#)+((397#)/(367#)))/854170501969645699246152769)/12277223854594410567719074755920634852313 has 82 digits
best regards,

Matthias
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