let $G$ be a finite group and $N$ be the normal subgroup of $G$ of index $p$, a prime number. Then what is number of all subgroups of $G$ containing $N$?
I don't have idea
let $G$ be a finite group and $N$ be the normal subgroup of $G$ of index $p$, a prime number. Then what is number of all subgroups of $G$ containing $N$?
I don't have idea
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