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2020 Malaysia IMONST 1
5
Malaysia IMONST 1 Senior P5
Malaysia IMONST 1 Senior P5
Source:
September 18, 2020
last digits
number theory
modulo
Problem Statement
Determine the last digit of
5
5
+
6
6
+
7
7
+
8
8
+
9
9
5^5+6^6+7^7+8^8+9^9
5
5
+
6
6
+
7
7
+
8
8
+
9
9
.
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