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Old 2015-01-02, 09:47   #4
paulunderwood
 
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Sep 2002
Database er0rr

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Code:
? 2^5*3^2*5*7*11*13*log(2)/log(10)
433916.67694988905402889179241167322850
? 2^5*3^2*5*7*11*13
1441440
So 2^1441440-2^k-1 might be a candidate for (E), where 360360<=k<1441440.
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