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Difference between revisions of "PrimeGrid 27121 Prime Search"

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(removing my last sentence again since Factorial and Primorial ran longer on PRPNet)
(clean up and update category for completed status)
 
(One intermediate revision by the same user not shown)
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Searching for primes of the forms {{Kbn|±|27|n}} and {{Kbn|±|121|n}}.
 
Searching for primes of the forms {{Kbn|±|27|n}} and {{Kbn|±|121|n}}.
  
The project ended in 2022 after all {{Vn}}≤10000000 were completed.
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The project ended on 2022-03-21 after all {{Vn}}≤10000000 were completed.
  
 
==Status==
 
==Status==
*[https://web.archive.org/web/*/http://prpnet.primegrid.com:12006/ PRPnet status]
 
 
*[[Riesel prime 2 27]]
 
*[[Riesel prime 2 27]]
 
*[[Proth prime 2 27]]
 
*[[Proth prime 2 27]]
 
*[[Riesel prime 2 121]]
 
*[[Riesel prime 2 121]]
 
*[[Proth prime 2 121]]
 
*[[Proth prime 2 121]]
 
==Multi Reservation==
 
*[[Multi Reservation:23|Multi Reservation 23]]
 
  
 
==History==
 
==History==
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==See also==
 
==See also==
 
*[[PrimeGrid]]
 
*[[PrimeGrid]]
*[[Seventeen or Bust]]
 
*[[Sierpiński problem]]
 
  
 
==External links==
 
==External links==
*[https://www.primegrid.com/forum_thread.php?id=1229 27121 Prime Search - PrimeGrid forums]
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*[https://www.primegrid.com/forum_thread.php?id=1229 27121 Prime Search - PrimeGrid forum]
  
 
{{Navbox PrimeGrid}}
 
{{Navbox PrimeGrid}}
[[Category:PrimeGrid 27121 Prime Search| ]]
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[[Category:PrimeGrid|27121 Prime Search]]

Latest revision as of 18:05, 18 April 2025

Purpose

Searching for primes of the forms 27•2n±1 and 121•2n±1.

The project ended on 2022-03-21 after all n≤10000000 were completed.

Status

History

For 27•2n±1 all n≤10000000 were checked
For 121•2n±1 all n≤10000000 were checked
Collaborating work with 12121 Search

See also

External links

PrimeGrid