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Old 2015-10-13, 13:22   #2
LaurV
Romulan Interpreter
 
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Jun 2011
Thailand

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Quote:
Originally Posted by kalikidoom View Post
...(2^(2^(2^n-1)-1)-1)...

I mean... isn't that at least a proof that there's an infinate amout of them?

Try it with how meny primes you like... and with how meny 2^....-1 you like... it always works
That is false. For n=4, all are composite. Also for n=11, all are composite.
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