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2015 ASDAN Math Tournament
19
19
Part of
2015 ASDAN Math Tournament
Problems
(1)
2015 Guts #19
Source:
7/28/2022
Compute the number of
0
≤
n
≤
2015
0\leq n\leq2015
0
≤
n
≤
2015
such that
6
n
+
8
n
6^n+8^n
6
n
+
8
n
is divisible by
7
7
7
.
2015
Guts Test