The coefficient of static friction may be

We know that coefficient of static friction

${\mu }_s=\frac{f_{ms}}{N}$

${\mu }_S$depends on nature of two surfaces in contact.

So we get $f_{ms}<N\left(or\right) f_{ms}=N \left(or\right) f_{ms}>N$

Therefore ${\mu }_S$ can be greater than 1 or less than 1 or equal to 1.