content of a polynomial

Let $P=a_{0}+a_{1}x+\\ldots+a_{n}x^{n}\\in\\mathbb{Z}[x]$ be a polynomial with integer coefficients. The content of $P$ is the greatest common divisor of the coefficients of $P$ .

c(P)=\\operatorname{gcd}(a_{0},a_{1},\\ldots,a_{n})

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