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Hanoi Open Mathematics Competition
2006 Hanoi Open Mathematics Competitions
2
Find the last three digits of the sum
Find the last three digits of the sum
Source:
January 24, 2016
Problem Statement
Find the last three digits of the sum
200
5
11
2005^{11}
200
5
11
+
200
5
12
2005^{12}
200
5
12
+ ... +
200
5
2006
2005^{2006}
200
5
2006
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