Let $\mathcal{M}_1,\dots,\mathcal{M}_r$ be all the maximal ideals of an Artin ring $A$ which is a finite $\mathbb{K}$-algebra; so let $A/\mathcal{M}_1\cdots\mathcal{M}_r$ be a $\mathbb{K}$-vector space. Which is its dimension?
Is it a general case that the number of maximal ideals in $A$ is equal to $\operatorname{dim}_{\mathbb{K}} A+1$?