Mathematical and Physical Journal
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Problem B. 4799. (May 2016)

B. 4799. Determine those pairs of non-negative 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 June 10, 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.

Problems in Mathematics of KöMaL, May 2016