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Old 2017-02-11, 00:57   #21
Max0526
 
"Max"
Jun 2016
Toronto

701 Posts
Default C172

cofactor of 13*2^905-1
poly found by CADO-NFS
http://ftp.mersenneforum.org/showpos...&postcount=759
Code:
Msieve v. 1.52 (SVN 958)
N=1374250293977900524006825181025041222391785962418349198188752592542556833408706796147779390990626204883096007787340300959668458776589915992783964729160514357520386806570509
R0: -2428783629542938000277341534964669
R1: 66381298897887862049
A0: 1684917805428384144779731520398675160500
A1: -3745304290230496073233576119438452
A2: -2342124466784250014333947213
A3: 259669333218732646325
A4: 9553108753746
A5: 97560
skew 13056627.55, size 1.255e-016, alpha -7.189, combined = 3.338e-013
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