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Poland - Second Round
1961 Poland - Second Round
4
4
Part of
1961 Poland - Second Round
Problems
(1)
last four digits of 5^{5555}
Source: Polish MO Second Round 1961 p4
8/31/2024
Find the last four digits of
5
5555
5^{5555}
5
5555
.
number theory
last digits