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Problems
Contests
National and Regional Contests
PEN Problems
PEN A Problems
94
94
Part of
PEN A Problems
Problems
(1)
A 94
Source:
5/25/2007
Find all
n
∈
N
n \in \mathbb{N}
n
∈
N
such that
3
n
−
n
3^{n}-n
3
n
−
n
is divisible by
17
17
17
.
algorithm
Divisibility Theory