diff --git a/numerical/factorial.go b/numerical/factorial.go
new file mode 100644
index 0000000..3e4121d
--- /dev/null
+++ b/numerical/factorial.go
@@ -0,0 +1,16 @@
+package main
+import "fmt"
+
+func factorial(num int) int {
+  if num == 0 {
+    return 1
+  }
+  return num * factorial(num - 1)
+}
+
+
+func main() {
+  num := 10
+  result := factorial(num)
+  fmt.Println(result)
+}