diff --git a/factorial.cpp b/factorial.cpp
new file mode 100644
index 0000000..6cc67c2
--- /dev/null
+++ b/factorial.cpp
@@ -0,0 +1,23 @@
+#include<iostream>
+using namespace std;
+
+int factorial(int n);
+
+int main() {
+
+  int n;
+
+  cout << "Enter a positive integer: ";
+  cin >> n;
+
+  cout << "Factorial of " << n << " = " << factorial(n);
+
+  return 0;
+}
+
+int factorial(int n) {
+  if(n > 1)
+    return n * factorial(n - 1);
+  else
+    return 1;
+}
\ No newline at end of file