How to compute $213^{-1}$ modulo $466$?
Could you also provide me with an explanation of how to do it?
How to compute $213^{-1}$ modulo $466$?
Could you also provide me with an explanation of how to do it?
So you want to compute the inverse of $213$ modulo $466$? In other words you want to find $x$ such that $$213x\equiv 1\text{ mod }466.$$ More specifically you want to find $x$ and $y$ such that $$213x+466y=1.$$ Have you heard of the Euclidean algorithm?