EntityQ2902746· pop 9· linked from 11 articlesErdős–Graham problemSign in to saveTheorem on the existence of finite sets of positive integers >1 whose inverses sum to 1ConnectionsUniversity of OxfordEntityintegerEntitydigital object identifierEntityInternational Standard Serial NumberEntityEuler's numberEntityUniversity of California, BerkeleyEntityPaul ErdősEntityDoctor of PhilosophyEntityQ118398Entitypartition of a setEntityQ22908627EntityUniversity of GeorgiaEntitypostdoctoral researcherEntityRonald GrahamEntityEgyptian fractionEntityMathematical ReviewsEntityAnnals of MathematicsEntitynatural densityEntitysmooth numberEntityErdős conjectureEntityCategoriesCombinatoricsConjectures that have been provedEgyptian fractionsPaul ErdősTheorems in number theory