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Difference between revisions of "PrimeGrid Sophie Germain Search"
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Revision as of 07:48, 15 June 2020
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The Sophie Germain Search is a PrimeGrid sub-project searching for Sophie Germain and Twin prime pairs. It was launched in 2009 as a successor to the Twin Prime Search sub-project.
Contents
Search range
The current iteration of the project is searching for prime numbers of the form k×21290000-1, for k ≤ 10 trillion. Sophie Germain pairs take the form k×21290001-1, and Twin pairs take the form k×21290000+1.
As of June 2020, the search is currently at k = 5.4 trillion. Live status
Found primes
As of June 2020 the project has found over 4600 primes, with one Sophie Germain and one Twin pair.
Sophie Germain pairs
- 2618163402417•21290000-1 and 2618163402417•21290001-1 on 2016-02-29, official announcement
Twin pairs
- 2996863034895•21290000-1 and 2996863034895•21290000+1 on 2016-09-14, official announcement
