diff --git a/factorial b/factorial
new file mode 100644
index 0000000..4c9af2e
--- /dev/null
+++ b/factorial
@@ -0,0 +1,9 @@
+#include<bits/stdc++.h>
+using namespace std;
+int main()
+{
+int n,a=1;
+cin>>n;
+for(int i=1;i<=n;i++)
+{a=a*i;}
+cout<<a;}