diff --git a/Mathematical Algorithms/factorial.kt b/Mathematical Algorithms/factorial.kt
new file mode 100644
index 0000000..ae60b13
--- /dev/null
+++ b/Mathematical Algorithms/factorial.kt	
@@ -0,0 +1,9 @@
+fun factorial() {
+    val num = 9
+    var factorial: Long = 1
+    for (i in 1..num) {
+        factorial *= i.toLong()
+    }
+    println("the factorial of $num is $factorial")
+
+}