[seqfan] Re: A104851

Ignacio Larrosa Cañestro ilarrosa at mundo-r.com
Sun Feb 5 22:55:36 CET 2012


N. J. A. Sloane wrote:
> Correction:
> 
> By the way, as long as we are playing with the primes in e,
> what about this:
> 
> We start with
> 
> 2.718281828459045235360287471352662497757247093699959574966967627724076630353547594571382\
>   
>   
> 1785251664274274663919320030599218174135966290435729003342952605956307381323286279434\
> ...  
> 
> and chop it up into primes, requiring that each prime be greater
> in length than all
> earlier primes. This seems to give
> 2, 71, 8281828459045235360287471, ...
> (done by hand, please check). What's the next term?
> 
> This is now A185120.

352662497757247093699959574966967627724076630353547594571382178525166427427466391932003059

is prime (90 digits). Using Alpertron

http://www.alpertron.com.ar/ECMC.HTM

Saludos,

Ignacio Larrosa Cañestro
A Coruña (España)
ilarrosa at mundo-r.com
http://www.xente.mundo-r.com/ilarrosa/GeoGebra/




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