## Problem of the Day #89: Darwin’s Diophantine
*June 16, 2011*

*Posted by Saketh in : potd , trackback*

Darwin is trying to find positive integers $x$ and $y$ such that $161x + 391y = 1863$. Determine the number of ordered pairs of positive integers $(x,y)$ that satisfy this equation.

## Comments»

I was never trying to do that.