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Old 2015-01-17, 21:42   #2
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"Tim Sorbera"
Aug 2006
San Antonio, TX USA

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Originally Posted by davar55 View Post
Let's call a prime p that can be written in the form p = x^y - y^x > 0 for integral x,y a Leyland-beta prime.
I'm not sure this is a valid definition.
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