Problem B. 4723. (September 2015)
B. 4723. Are there infinitely many difference prime numbers, such that the sum of any 2015 of them is a composite number?
Proposed by G. Mészáros, Budapest
(3 pont)
Deadline expired on 12 October 2015.
Statistics:
206 students sent a solution.  
3 points:  159 students. 
2 points:  30 students. 
1 point:  9 students. 
0 point:  6 students. 
Unfair, not evaluated:  1 solution. 
Unfair, not evaluated:  1 solution. 
