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Old 2013-06-21, 18:46   #11
YuL
 
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Feb 2012
Paris, France

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Default P77 found by ECM

Nice!!
By the way I didn't see any comment on the P76 reported about 3 weeks ago by Ryan P. (factor of 176^176+175^175 found with B1=26e7) and it doesn't appear in the top-50.
We only need a P74 and a P78 to have all P7x...
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