> **Possible Duplicate:** > [Deriving Inverse of Hilbert Matrix](https://mathoverflow.net/questions/47561/deriving-inverse-of-hilbert-matrix) The inverse of the [Hilbert Matrix][1] is made up entirely of integer entries, but I can't seem to find an elementary proof for that though, any hints? [1]: http://en.wikipedia.org/wiki/Hilbert_matrix