Solving the diophantine equation 1/a+1/b= p/10n
Problem 157Published on Friday, 1st June 2007, 06:00 pm; Solved by 1349
Consider the diophantine equation 1/a+1/b= p/10n with a, b, p, n positive integers and a b.
For n=1 this equation has 20 solutions that are listed below:
How many solutions has this equation for 1 n 9?