30

This number is a composite.

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The only composite number n such that n^(n+2)+1 is a non-titanic prime, i.e., 30^32+1= 185302018885184100000000000000000000000000000001 (48-digits) is prime. [Loungrides]

Submitted: 2011-09-26 09:44:30;   Last Modified: 2020-06-01 09:49:42.
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