Home›Diophantine equations›방정식 xy = yx🌐한국어EnglishDeutschEspañolFrançaisItalianoРусскийالعربية한국어日本語EntityQ23815594· pop 10· linked from 5 articles방정식 xy = yxexponential functionAvailable in 10 languagesFrançaisDeutsch日本語РусскийItalianoالعربيةArmenianUkrainian한국어via Wikidata sitelinks · CC0ConnectionsEuler's numberEntityLeonhard EulerEntityCategoriesDiophantine equationsRecreational mathematics