In the section Classical Factorization of Shor’s Algorithm, in the definition of “nontrivial square root”, it should say x belongs to the set {2,…,m-2}, not {2,m-2}. Also maybe it would be nice to explain in one line why they’re called that, i.e., because 1 and -1 are always square roots.

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Hi @Marco_Flores , welcome to the Forum and thanks for the suggestion!

We’ll make sure to make this update. Thank you for helping us make the Codebook better!