Multiplicative inverse
In Modular arithmetic, y is the multiplicative inverse of x if:
![\[xy \equiv 1 (\text{mod m})\]](http://latex.artofproblemsolving.com/0/f/2/0f2556ddbddb57a37ab2bef984d200b4c7d2cd86.png)
and if x is not relatively prime to m
This is equivalent to the modular inverse.
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