[soku11]

Here my code for this function:

bool IsPrime( unsigned int number )
{
  if( number<2 ) return false;
  if( number==2 ) return true;

  for( int i=2;i<=number/2;++i )
    if( number%i==0 ) return false;

  return true;
}

It returns true if the numer is a prime or false if it isnt.