Link : Problem
Can someone please explain(in simple words) why we need to take only numbers that are coprime with n, I read the editorial but still can't fully understand the proof that why a non coprime number will give prod%n != 1
Link : Problem
Can someone please explain(in simple words) why we need to take only numbers that are coprime with n, I read the editorial but still can't fully understand the proof that why a non coprime number will give prod%n != 1
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