Thread: Welcome!
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Old 2007-05-05, 07:42   #4
hhh's Avatar
Jun 2005

373 Posts

I put some of the information requested in the initial post. As for the chances of dumb luck, I don't know much; As for the Woodal-numbers, with -1 instead of +1, there exist prime exponents yielding a prime, e.g. 3, but that doesn't need necessarily something.
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