👉 In mathematics, an invaried is a mathematical concept that describes a property or characteristic of a variable that remains unchanged when the variables are multiplied by a constant factor. In other words, if $x$ and $y$ are two variables, then $xy$ will be invariant under any multiplication by a constant factor $k$, provided that $k \neq 0$. This means that if we multiply one of the variables by some value $k$, then the other variable remains unchanged.