In number theory, a prime number p is a Sophie Germain prime 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.
See Sophie Germain prime article on Wikipedia.
In this Problem , the input is a number and you must return true or false if this number is a Sophie Germain prime.
Solution Stats
Problem Comments
1 Comment
Solution Comments
Show comments
Loading...
Problem Recent Solvers1068
Suggested Problems
-
27960 Solvers
-
The Goldbach Conjecture, Part 2
2416 Solvers
-
Who knows the last digit of pi?
692 Solvers
-
Output any real number that is neither positive nor negative
410 Solvers
-
3603 Solvers
More from this Author30
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
None of the test cases actually check if the prime is Sophie Germain...