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Korea Junior Mathematics Olympiad
2012 Korea Junior Math Olympiad
3
3
Part of
2012 Korea Junior Math Olympiad
Problems
(1)
Find l,m,n that satisfy the equation
Source: KJMO 2012 Problem 3
9/5/2018
Find all
l
,
m
,
n
ā
N
l,m,n \in\mathbb{N}
l
,
m
,
n
ā
N
that satisfies the equation
5
l
4
3
m
+
1
=
n
3
5^l43^m+1=n^3
5
l
4
3
m
+
1
=
n
3
number theory