diff --git a/Project-Euler/Problem1.js b/Project-Euler/Problem1.js
index 9c971942ee..af3582f030 100644
--- a/Project-Euler/Problem1.js
+++ b/Project-Euler/Problem1.js
@@ -1,12 +1,15 @@
+// https://projecteuler.net/problem=1
 /*    Multiples of 3 and 5
     If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.
 Find the sum of all the multiples of 3 or 5 below the provided parameter value number.
 */
 
-function multiplesThreeAndFive (num) {
+const readline = require('readline')
+
+const multiplesThreeAndFive = (num) => {
   let total = 0
   // total for calculating the sum
-  for (let i = 0; i <= num; i++) {
+  for (let i = 0; i < num; i++) {
     if (i % 3 === 0 || i % 5 === 0) {
       total += i
     }
@@ -14,5 +17,11 @@ function multiplesThreeAndFive (num) {
   return total
 }
 
-var num = console.log('Enter a number: ')
-console.log(multiplesThreeAndFive(num)) // multiples3_5 function to calculate the sum of multiples of 3 and 5 within num
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout
+})
+rl.question('Enter a number: ', function (num) {
+  console.log(multiplesThreeAndFive(num)) // multiples3_5 function to calculate the sum of multiples of 3 and 5 within num
+  rl.close()
+})
diff --git a/package-lock.json b/package-lock.json
index 20ddcf6636..24112b042c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7593,9 +7593,9 @@
       }
     },
     "tslib": {
-      "version": "1.13.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
-      "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==",
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
       "dev": true
     },
     "tunnel-agent": {