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avatar+355 

Find all integers $n$, $0 \le n < 163$, such that $n$ is its own inverse modulo $163.$ 

 Jul 28, 2024
 #1
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The numbers that work are 0, 1, 40, 60, 80, 100, 120, 140, and 160.

 Aug 28, 2024

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