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‎Project-Euler/Problem005.js‎
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‎Project-Euler/test/Problem005.test.js‎
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@@ -35,6 +35,8 @@
   * [ROT13](Ciphers/ROT13.js)
   * [VigenereCipher](Ciphers/VigenereCipher.js)
   * [XORCipher](Ciphers/XORCipher.js)
+* **Compression**
+  * [RLE](Compression/RLE.js)
 * **Conversions**
   * [ArbitraryBase](Conversions/ArbitraryBase.js)
   * [ArrayBufferToBase64](Conversions/ArrayBufferToBase64.js)
@@ -285,6 +287,7 @@
   * [Problem016](Project-Euler/Problem016.js)
   * [Problem017](Project-Euler/Problem017.js)
   * [Problem018](Project-Euler/Problem018.js)
+  * [Problem019](Project-Euler/Problem019.js)
   * [Problem020](Project-Euler/Problem020.js)
   * [Problem021](Project-Euler/Problem021.js)
   * [Problem023](Project-Euler/Problem023.js)
 
@@ -5,11 +5,9 @@ Smallest multiple
 What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?
 */
 
-export const findSmallestMultiple = () => {
-  const divisors = [
-    20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2
-  ]
-  let num = 21
+export const findSmallestMultiple = (maxDivisor) => {
+  const divisors = Array.from({ length: maxDivisor }, (_, i) => i + 1)
+  let num = maxDivisor + 1
   let result
 
   while (!result) {
 
@@ -0,0 +1,12 @@
+import { expect } from 'vitest'
+import { findSmallestMultiple } from '../Problem005.js'
+
+describe.concurrent('Find smallest multiple', () => {
+  test.each([
+    [10, 2520],
+    [15, 360360],
+    [20, 232792560]
+  ])('max divisor -> %i, smallest multiple -> %i', (a, expected) => {
+    expect(findSmallestMultiple(a)).toBe(expected)
+  })
+})