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paulunderwood · 2015-01-02, 09:47

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.

2015-01-02, 09:47	#4
paulunderwood Sep 2002 Database er0rr 2⁴·7·37 Posts	Code: ? 2^53^2571113log(2)/log(10) 433916.67694988905402889179241167322850 ? 2^53^25711*13 1441440 So 2^1441440-2^k-1 might be a candidate for (E), where 360360<=k<1441440.