Little fermat rule's related problem
Number Theory
Level
2
What is the remainder when is divided by ?
4
3
0
1
7
5
2
6
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1 solution
7 8 ≡ ( − 2 ) 8 ( m o d 9 ) ≡ 1 6 2 ( m o d 9 ) ≡ ( − 2 ) 2 ( m o d 9 ) ≡ 4 ( m o d 9 )