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Old 2007-03-25, 05:59   #2
AntonVrba
 
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Jun 2005

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Quote:
Originally Posted by hhh View Post
This project is searching a Cullen prime, i.e. a prime of the form n*2^n+1, with prime exponent. There are Cullen primes known, but only with composite exponents, and nobody knows if there is such a prime. Well, we'll see.

... snip snip ....

Finally, welcome again, and let us find that prime and finish the project soon.

Yours H.

HHH congratulation on your organisational skills and running with the idea that had started at http://primepuzzles.redgolpe.com/topic.asp?TOPIC_ID=10 . I wish this group luck and it will be great if the prime-Cullen-prime exponent can be found, there is no reason why it should not exist.
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