diff --git a/lisp/euler005.lisp b/lisp/euler005.lisp
new file mode 100644
index 0000000..e6e5ce0
--- /dev/null
+++ b/lisp/euler005.lisp
@@ -0,0 +1,9 @@
+(load "euler.lisp")
+
+(defun is-evenly-divisible-by-all-up-to (n int)
+  (eq 0 (sum (mapcar (partial #'mod n) (range 2 int))))
+)
+
+(defun solution ()
+  (loop for i from 2 by 2 when (is-evenly-divisible-by-all-up-to i 20) do (return i))
+)