19810Find non-integer A such that floor(A^n) is never prime?
- Jan 15, 2009Just a silly little thought I had...
It is almost certainly possible to find a positive non-integer A > 1
such that for all integer n, floor(A^n) is not prime.
Question -- does any such number A exist with a simple closed-form
Or, along those lines... is floor(sqrt(18)^n) ever prime? :)
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