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A165672
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Primes p such that (p^2+2)/33 is prime.
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3
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19, 47, 107, 151, 173, 179, 349, 487, 547, 569, 641, 701, 883, 971, 1009, 1097, 1213, 1361, 1493, 1559, 1873, 1889, 1933, 2269, 2351, 2357, 2423, 2797, 2819, 2879, 3259, 3347, 3391, 3457, 3539, 3583, 4051, 4139, 4177, 4799, 4969, 5437, 6091, 6163, 6427
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OFFSET
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1,1
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COMMENTS
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For (p^2+2)/33 to be an integer, p must be congruent to 8, 14, 19, or 25 (mod 33). Examples: 107 = 8, 47 = 14, 19 = 19, and 487 = 25 (mod 33). [From Michael B. Porter, Oct 20 2009]
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LINKS
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EXAMPLE
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p=19: (19^2+2)/33=11; p=47: (47^2+2)/33=67; p=107: (107^2+2)/33=347
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MATHEMATICA
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Select[Prime[Range[1000]], PrimeQ[(#^2+2)/33]&] (* Harvey P. Dale, Feb 18 2012 *)
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CROSSREFS
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KEYWORD
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nonn,less
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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