Problem 896. Sophie Germain prime
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
None of the test cases actually check if the prime is Sophie Germain...
Solution Comments
Show commentsProblem Recent Solvers736
Suggested Problems
-
Read a column of numbers and interpolate missing data
2230 Solvers
-
302 Solvers
-
3545 Solvers
-
Find the max element of the array
1387 Solvers
-
443 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!