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%I #2 Mar 30 2012 17:24:41
%S 2,5,13,17,29,31,37,53,59,61,73,79,89,97,101,109,127,131,137,139,173,
%T 179,181,191,193,197,211,223,229,233,239,241,251,257,271,277,281,283,
%U 293,307,311,313,317,349,359,367,373,379,383,389,397,401,409,421,433
%N Primes whose integer square root remainder is not a prime.
%C The integer square root of an integer x >= 0 can be defined as floor(sqrt(x)) and the remainder of this as x - (floor(sqrt(x)))^2.
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Integer_square_root">Integer square root</a>
%o (PARI) { forprime(p=2, 2000, isr = sqrtint(p); Rem = p - isr*isr; if (!isprime(Rem), print1(p, ",") ) ) }
%K nonn
%O 1,1
%A _Harry J. Smith_, Dec 07 2007
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