Sequence of primorial primes: Difference between revisions
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{{task|Prime Numbers}} |
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[[Category:Prime Numbers]] |
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The sequence of primorial primes is given as the increasing values of n where [[Primorial numbers|primorial]](n) ± 1 is prime. |
The sequence of primorial primes is given as the increasing values of n where [[Primorial numbers|primorial]](n) ± 1 is prime. |
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* This task asks for the primorial ''indices'' that create the final primorial prime numbers, so there should be no ten-or-more digit numbers in the program output (although extended precision integers ''will'' be needed for intermediate results). |
* This task asks for the primorial ''indices'' that create the final primorial prime numbers, so there should be no ten-or-more digit numbers in the program output (although extended precision integers ''will'' be needed for intermediate results). |
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* There is some confusion in the references, but for the purposes of this task the '''[[wp:Primorial prime|sequence]] begins with n = 1'''. |
* There is some confusion in the references, but for the purposes of this task the '''[[wp:Primorial prime|sequence]] begins with n = 1'''. |
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* Probabilistic primality tests are allowed, as long as they are good enough that output shown is correct. |
* Probabilistic primality tests are allowed, as long as they are good enough such that the output shown is correct. |
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;Cf. |
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* [[Factorial]] |
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;See also: |
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* [[wp:Primorial prime|Primorial prime]] Wikipedia. |
* [[wp:Primorial prime|Primorial prime]] Wikipedia. |
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* [https://primes.utm.edu/glossary/page.php?sort=PrimorialPrime Primorial prime] from The Prime Glossary. |
* [https://primes.utm.edu/glossary/page.php?sort=PrimorialPrime Primorial prime] from The Prime Glossary. |
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* [https://oeis.org/A088411 Sequence A088411] from The On-Line Encyclopedia of Integer Sequences |
* [https://oeis.org/A088411 Sequence A088411] from The On-Line Encyclopedia of Integer Sequences |
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