Problem 896. Sophie Germain prime

Created by Aurelien Queffurust

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>In number theory, a prime number p is a</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:b/></w:rPr><w:t>Sophie Germain prime</w:t></w:r><w:r><w:t> if 2p + 1 is also prime. For example, 23 is a Sophie Germain prime because it is a prime and 2 × 23 + 1 = 47, and 47 is also a prime number. These numbers are named after French mathematician Marie-Sophie Germain.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>See</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://en.wikipedia.org/wiki/Sophie_Germain_prime\"><w:r><w:t>Sophie Germain prime</w:t></w:r></w:hyperlink><w:r><w:t> article on Wikipedia.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>In this Problem , the input is a number and you must return true or false if this number is a Sophie Germain prime.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

508 Solutions
253 Solvers

Last Solution submitted on Oct 20, 2020

Last 200 Solutions

Problem Comments

Problem Recent Solvers253

Problem Tags

prime primes sophie germain

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 896. Sophie Germain prime

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers253

Suggested Problems

More from this Author30

Problem Tags

Community Treasure Hunt

Problem 896. Sophie Germain prime

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers253

Suggested Problems

More from this Author30

Problem Tags

Community Treasure Hunt

Players