The Goldbach conjecture asserts that every even integer greater than 2 can be expressed as the sum of two primes.
Given the even integer n, return c, the number of different ways two primes can be added to result in n. Only count a pair once; the order is unimportant.
Example:
Input n = 10 Output c is 2
because of the prime pairs [3 7] and [5 5].
Input n = 50 Output c is 4
because of [3 47], [7 43], [13 37], and [19 31].
Solution Stats
Problem Comments
3 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers2417
Suggested Problems
-
Project Euler: Problem 3, Largest prime factor
1814 Solvers
-
Find perfect placement of non-rotating dominoes (easier)
388 Solvers
-
5172 Solvers
-
There are 10 types of people in the world
1379 Solvers
-
6543 Solvers
More from this Author96
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
For some reason the 'nthprime' function is not recognized, however it works for me in my desktop MATLAB.
@Dima Panna 'nthprime' uses symbolic math toolbox which is not supported in cody
I have used same solution approach as in goldbach conjecture part 1.