Let $(R, \mathfrak m)$ be a local Cohen-Macaulay ring. How to show that $R$ has minimal multiplicity (i.e. $e(R)=\mu (\mathfrak m)- \dim R +1$ ) if and only if $\mathfrak m^2=(\overline x)\mathfrak m$ for some regular sequence $\overline x$ in $R$ ?
If this is not true in general is it at least true if we assume $R/\mathfrak m$ is infinite ?