Clojure - calling up rand-int into a variable

I am very new to Clojure, so please forgive me. I have been crawling through many sites/tutorials but came up empty-handed.

I need to create random numbers and store them into a variable for multiple calculations and for different calls.

(defn position
   (def x (rand-int 2147483647))
   (def y (rand-int 2147483647))
   (def z (rand-int 2147483647))
   )

Anyone could help, please?