Prime quadruplet
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Cousin prime
5000 (number)
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3000 (number)
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2000 (number)
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127 (number)
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1000 (number)
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83 (number)
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79 (number)
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23 (number)
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List of number theory topics
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Sexy primes
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19 (number)
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3
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List of unsolved problems in mathematics
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Twin prime
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13 (number)
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Brun's constant for cousin primes
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