Problem B. 4799. (May 2016)
B. 4799. Determine those pairs of nonnegative integers \(\displaystyle (a,b)\) for which \(\displaystyle 5^a+3^b\) is a perfect square.
Proposed by T. Káspári, Paks
(5 pont)
Deadline expired on 10 June 2016.
Statistics:
91 students sent a solution.  
5 points:  64 students. 
4 points:  11 students. 
3 points:  7 students. 
2 points:  4 students. 
1 point:  4 students. 
0 point:  1 student. 
