diff --git a/app/src/models/compute.py b/app/src/models/compute.py
index 4d1c761..828c7e1 100644
--- a/app/src/models/compute.py
+++ b/app/src/models/compute.py
@@ -22,5 +22,25 @@ def ackermann(m, n):
         return
 
 
+    @staticmethod
     def factorial(n):
-        return
+        if n==1:
+            return n
+        else:
+            res=1
+            for i in range(1,n+1):
+                res=res*i
+            return res    
+        if n< 0:
+
+            print("Sorry, factorial does not exist for negative numbers")
+        if n == 0:
+
+            print("The factorial of 0 is 1")
+        
+
+    
+    
+    
+
+        
diff --git a/app/src/views/math_functions.py b/app/src/views/math_functions.py
index d02273c..11881fb 100644
--- a/app/src/views/math_functions.py
+++ b/app/src/views/math_functions.py
@@ -11,7 +11,7 @@
 # Set the route and accepted methods
 @math.route('/')
 def index():
-    return "This is an example app"
+    return "This is an my first web app"
 
 
 @math.route('/home')
@@ -31,6 +31,10 @@ def fib_n():
 def ack_mn():
     return ""
 
-
+@math.route("/fact",methods=["POST"])
 def fact_n():
-    return ""
+    n = request.form["fact_n"]
+    if not validations.validate_int(n):
+        return "enter valid number"
+    return str(Compute.factorial(int(n)))
+    
\ No newline at end of file
diff --git a/app/templates/home.html b/app/templates/home.html
index b659a56..c443d9a 100644
--- a/app/templates/home.html
+++ b/app/templates/home.html
@@ -7,6 +7,11 @@
         <input name="fib_n" placeholder="Enter Integer 'N'">
         <input type="submit">
     </form>
+    <form method="POST" action="/fact">
+        factorial(n):<br>
+        <input name="fact_n" placeholder="ente the number">
+        <input type="submit">
+    </form>
 </body>
 
 </html>
\ No newline at end of file
diff --git a/app/test/test_compute.py b/app/test/test_compute.py
index 21494f7..6c7abc2 100644
--- a/app/test/test_compute.py
+++ b/app/test/test_compute.py
@@ -10,3 +10,5 @@ def test_ackermann():
 
 
 def test_factorial():
+    assert Compute.factorial(3)==6
+    assert Compute.factorial(0)==1