diff --git a/Armstrong_Number.coffee b/Armstrong_Number.coffee
new file mode 100644
index 0000000000..2bbe105907
--- /dev/null
+++ b/Armstrong_Number.coffee
@@ -0,0 +1,24 @@
+armstrongNumber = (num) -> 
+  originalnum = num
+  reoriginalnum=num
+  
+  result=0
+  count=0
+  while num != 0
+    num = parseInt(num / 10)
+    count++
+   
+  while reoriginalnum != 0
+    remainder = reoriginalnum % 10
+    result += Math.pow(remainder, count)
+    reoriginalnum = parseInt(reoriginalnum / 10)
+  
+
+  if result == originalnum
+    console.log "Yes, it is an armstrong number"
+  else
+    console.log "It is not an armstrong number"
+
+
+#call the function to check whether number is armtsrong number or not
+#armstrongNumber 1634
\ No newline at end of file