Erdős problem 940Let r≥3r \ge 3. Is it true that the set of integers which are the sum of at most rr rr-powerful numbers has density 00?WorkspaceContinue locallyOpen sourceSign in to contributeOpen this exact Problem, source revision, and authority Repository in Workbench. This handoff does not clone, switch, upload, or execute anything.FilesErdős problem 9406 retained source recordsCanvaspublic previewSource#940→ResultNone→Checks0