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What is the smallest integer n, greater than 1, such that \(n^{-1}\pmod{130}\) and \(n^{-1}\pmod{231}\) are both defined?

 Sep 16, 2020
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The smallest integer n = 17

 

17^(-1) mod 130 = 23

17^(-1) mod 231 = 68

 Sep 16, 2020

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