diff --git a/isArmstrong.C b/isArmstrong.C
new file mode 100644
index 00000000..75b64f39
--- /dev/null
+++ b/isArmstrong.C
@@ -0,0 +1,24 @@
+#include<stdio.h>
+
+int main()
+{
+	int n, sum=0, i, num;
+	printf("Enter number: ");
+	scanf("%d",&n);
+	num=n;
+	while (n!=0)
+	{
+		i=n%10;
+		sum=sum+(i*i*i);
+		n=n/10;
+	}
+	if (sum==num)
+	{
+		printf("%d is an armstrong number!", num);
+	}
+	else
+	{
+		printf("%d is not an armstrong number!", num);
+	}
+	return 0;
+}
\ No newline at end of file