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Difference between revisions of "PrimeGrid 27121 Prime Search"

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(2021-04-08)
(remove obsolete multi-reservation)
 
(3 intermediate revisions by 2 users not shown)
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==Purpose==
 
==Purpose==
 
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.
  
 
==Status==
 
==Status==
*[http://prpnet.primegrid.com:12006/ PRPnet 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==
*{{HistLink|2021-04-08|P#9612#149921}}: For {{Kbn|±|121|n}} all {{Vn}}<=10000000 were checked
+
*{{HistLink|2022-03-21|P#9850#154888}}: For {{Kbn|±|27|n}} all {{Vn}}≤10000000 were checked
*2009-02-13: Collaborating work with [[12121 Search]]
+
*{{HistLink|2021-04-08|P#9612#149921}}: For {{Kbn|±|121|n}} all {{Vn}}≤10000000 were checked
 +
*{{HistLink|2009-02-13|P#1229#13574}}: Collaborating work with [[12121 Search]]
  
 
==See also==
 
==See also==

Latest revision as of 00:15, 15 May 2024

Purpose

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

The project ended in 2022 after all n≤10000000 were completed.

Status

History

See also

External links

PrimeGrid