Quote:
Originally Posted by hhh
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.
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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 primeCullenprime exponent can be found, there is no reason why it should not exist.