keyball123的博客

sagemath代码 q = 97 R.<x>=Zmod(q)[] f=x^2020+20*x^1974+38 # f=x^3-x flag = 0 for i in range(floor(2020/2)): g = x^(q^(i+1))-x if gcd(f,g%f)!=1: print("f(x)在Z",q,"上可约") flag...