What is the meaning of # in front of Clojure symbol?

When I declare a global Var like:

(def x 100)

I get the following output –

=> #'tutorial.core/x

I can understand that the 'tutorial.core/x is a symbol here, but what is the meaning of #?

>Solution :

It is a reader macro. That is, it is shorthand for typing

(var tutorial.core/x)

or just

(var x)   ; in the same namespace

You can find more information here.