Spring- request scope verses prototype scope

Whats the difference b/w request scope vs prototype scope in terms of a webapplication..where there are 2 beans

Prototype creates a brand new instance everytime you call getBean on the ApplicationContext. Whereas for Request, only one instance is created for an HttpRequest. So in a single HttpRequest, I can call getBean twice on Application and there will ever be one bean instantiated, whereas that same bean scoped to Prototype in that same single HttpRequest would get 2 different instances. 

HttpRequest scope 

Mark mark1 = context.getBean("mark"); 

Mark mark2 = context.getBean("mark"); 

mark1 == mark2; //This will return true 

Prototype scope 

Mark mark1 = context.getBean("mark"); 

Mark mark2 = context.getBean("mark"); 

mark1 == mark2; //This will return false