Denominator

Denominator[e] returns the denominator of e.

Attributes[Denominator] := {Listable, Protected}

Simple examples

In[1]:= Denominator[(a)/(b*c)]
Out[1]= b*c

In[2]:= Denominator[a^2*b]
Out[2]= 1

In[3]:= Denominator[a^2*b^-2*c^-3]
Out[3]= b^2*c^3

In[4]:= Denominator[a^2*b^(a*-1)*c^(d*-1)]
Out[4]= b^a*c^d

In[5]:= Denominator[(2)/(3)]
Out[5]= 3