diff --git a/examples/factorial.lamb b/examples/factorial.lamb
new file mode 100644
index 0000000..a63a4ef
--- /dev/null
+++ b/examples/factorial.lamb
@@ -0,0 +1,4 @@
+factorial(0) -> 1.
+factorial(n) -> n * factorial(n - 1).
+
+putstrln(itos(factorial(10))).
\ No newline at end of file