I can not understand what the purpose is of type modifiers for literal constants, like for numerical constants:

75 
75u     
75l  
75ul
75lu 

In what cases could this possibly be useful? I mean if you already have declared a type modifier for the variable type, I do not see a need for this. If anybody could help me understand this, it would be amazing! Thanks!

Bonus question: Is "literal" the same as "constant" like could you just say "literal" instead of "literal constant"?