GCD

GCD[n1, n2, ...] finds the greatest common denominator of the integer inputs.

Attributes[GCD] := {Flat, Listable, OneIdentity, Orderless, Protected}

Simple examples

In[1]:= GCD[9, 6]
Out[1]= 3

In[2]:= GCD[100, 30, 15]
Out[2]= 5