On 31.07.2009, at 08:09, Áõ½¨¾ü wrote: > Dear forum > Let $G$ be a finite group. I would like to know whether $G$ is p- > solvable, where p is a any prime of dividing the order of $G$. > Is there a method to get it? > Best wishes > Jianjun Liu Just use `IsPSolvable(G,p)' - see Section 37.15 (Group Properties) in the GAP manual. Cheers, Burkhard.