Python Program for factorial of a number

Mohit5700 · web-flow · commit 597dfb83834a · 2020-10-02T19:33:15.000+05:30
Factorial of a non-negative integer, is multiplication of all integers smaller than or equal to n. For example factorial of 6 is 6*5*4*3*2*1 which is 720.
diff --git a/factorial b/factorial
@@ -0,0 +1,16 @@
+def factorial(n): 
+    if n < 0: 
+        return 0
+    elif n == 0 or n == 1: 
+        return 1
+    else: 
+        fact = 1
+        while(n > 1): 
+            fact *= n 
+            n -= 1
+        return fact 
+  
+# Driver Code 
+num = 5; 
+print("Factorial of",num,"is", 
+factorial(num)) 
