Problem
erdos:26Let be infinite. Must there exist some such that almost all integers have a divisor of the form for some ? The question as posed follows negatively from Davenport–Erdős (1951). The AI result settles Tenenbaum's harder variant, also negatively: there is an infinite such that for every the set of multiples of has upper density below .
Matching claims
No direct claims
This problem has no directly related claim record.