Find the remainder when $$\frac{{{2}^{2019}}}{{{4}^{982}}-{{2}^{1963}}}$$ is divided by $$5$$． 
Overseas Competition->Knowledge Point->Number Theory Modules->Perfect Square Numbers->The Relationship between Exponents and the Number of Factors
$$\frac{{{2}^{2019}}}{{{2}^{1964}}-{{2}^{1963}}}$$  $$={{2}^{2019-1963}}$$  $$={{2}^{56}}$$，  ∴$${{2}^{56}}:6$$，  $$6\div 5:1$$． 