Erdős problem 213Let n≥4n \geq 4. Are there nn points in R2\mathbb{R}^2, no three on a line and no four on a circle, such that all pairwise distances are integers?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 2133 retained source recordsCanvaspublic previewSource#213→ResultNone→Checks0