# Heesch's problem

> English word · Proper noun

## Definitions
1. The mathematical problem of determining the set of numbers that can be Heesch numbers.

## Etymology
Named after geometer Heinrich Heesch.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/heesch-s-problem