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4

Part of 2019 Cono Sur Olympiad

Problems(1)

2019 Cono Sur Mathematical Olympiad, P4

Source:

8/28/2019
Find all positive prime numbers p,q,r,sp,q,r,s so that p2+2019=26(q2+r2+s2)p^2+2019=26(q^2+r^2+s^2).
number theoryprimesDiophantine equationcono sur