diff --git a/factorial.py b/factorial.py
new file mode 100644
index 0000000..77e1321
--- /dev/null
+++ b/factorial.py
@@ -0,0 +1,15 @@
+# change the value for a different result
+num = 3
+
+
+factorial = 1
+
+# check if the number is negative, positive or zero
+if num < 0:
+   print("Sorry, factorial does not exist for negative numbers")
+elif num == 0:
+   print("The factorial of 0 is 1")
+else:
+   for i in range(1,num + 1):
+       factorial = factorial*i
+   print("The factorial of",num,"is",factorial)
\ No newline at end of file