diff --git a/fact.c b/fact.c
new file mode 100644
index 0000000..3ce697e
--- /dev/null
+++ b/fact.c
@@ -0,0 +1,19 @@
+//to calculate factorial of a number
+
+#include<stdio.h>
+
+int main() {
+
+    int i,n,x=1;
+
+    printf("enter the value for calculating factorial\n");
+
+    scanf("%d",&n);
+
+    for(i=1;i<=n;i++)
+
+    {x = x*i;}
+
+    printf("value of %d! is %d",n,x);
+
+}