Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleDefining numbers in terms of their divisors.AuthorsSpeijer, D.AbstractA letter to the editor is presented in response to the review of the book "The Housekeeper and the Professor," by Yoko Ogawa in the 2009 issue.SubjectsLETTERS to the editor; HOUSEKEEPER &; the Professor, The (Book)PublicationNature, 2009, Vol 461, Issue 7260, p37ISSN0028-0836Publication typeLetterDOI10.1038/461037c