From ef72a87c21b9f609b3aec45f89815606a864bf5a Mon Sep 17 00:00:00 2001
From: shikhar96 <sb.shah14@gmail.com>
Date: Sun, 15 Oct 2017 16:37:20 +0530
Subject: [PATCH] Added factorial in C

---
 C/Factorial.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 C/Factorial.c

diff --git a/C/Factorial.c b/C/Factorial.c
new file mode 100644
index 0000000..5ea5a29
--- /dev/null
+++ b/C/Factorial.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+int main()
+{
+    int n, i;
+    unsigned long long factorial = 1;
+
+    printf("Enter an integer: ");
+    scanf("%d",&n);
+
+    // show error if the user enters a negative integer
+    if (n < 0)
+        printf("Error! Factorial of a negative number doesn't exist.");
+
+    else
+    {
+        for(i=1; i<=n; ++i)
+        {
+            factorial *= i;              // factorial = factorial*i;
+        }
+        printf("Factorial of %d = %llu", n, factorial);
+    }
+
+    return 0;
+}
\ No newline at end of file