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A135108
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Integers n such that 10^n+39 is a prime number.
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1
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2, 3, 4, 6, 8, 12, 20, 72, 196, 676, 1528, 1923, 5244, 5379, 6308, 21222, 81778
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OFFSET
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1,1
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LINKS
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EXAMPLE
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6 is a member: 10^6+39 = 1000000+39 = 1000039, which is a prime number.
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MATHEMATICA
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Select[Range[2000], PrimeQ[10^# + 39] &] (* G. C. Greubel, Sep 23 2016 *)
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PROG
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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)gmail.com), Feb 12 2008
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EXTENSIONS
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STATUS
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approved
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