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A110933
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Integers k such that 3*10^k + 71 is a prime number.
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0
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1, 4, 7, 16, 19, 190, 227, 235, 283, 319, 1655, 3955, 10666, 30724
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OFFSET
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1,2
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COMMENTS
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See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "30071".
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LINKS
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EXAMPLE
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k = 7 is a member because: 3*10^7 + 71 = 30000071, which is prime.
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PROG
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(PARI) isok(n) = isprime(3*10^n+71); \\ Michel Marcus, Jan 22 2017
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CROSSREFS
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KEYWORD
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more,nonn
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AUTHOR
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Julien Peter Benney (jpbenney(AT)ftml.net), Oct 04 2005
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EXTENSIONS
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STATUS
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approved
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