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A105680
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Numbers k such that 1009*k + 9973 is prime.
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4
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0, 4, 10, 34, 40, 70, 106, 124, 136, 144, 150, 162, 166, 174, 186, 190, 202, 244, 280, 300, 312, 360, 370, 372, 376, 384, 390, 412, 454, 456, 466, 472, 474, 504, 522, 540, 544, 546, 550, 574, 586, 592, 606, 612, 624, 636, 654, 670, 682, 684, 690, 694, 696
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OFFSET
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1,2
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COMMENTS
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1009 and 9973 are the smallest and largest four-digit primes, respectively.
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LINKS
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EXAMPLE
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If k=0, then 1009*k + 9973 = 9973 (prime).
If k=144, then 1009*k + 9973 = 155269 (prime).
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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