diff --git a/DIRECTORY.md b/DIRECTORY.md
index c150576af..39c52824b 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -146,6 +146,7 @@
   * [Polynomial](https://github.com/TheAlgorithms/Javascript/blob/master/Maths/Polynomial.js)
   * [Pow](https://github.com/TheAlgorithms/Javascript/blob/master/Maths/Pow.js)
   * [PrimeCheck](https://github.com/TheAlgorithms/Javascript/blob/master/Maths/PrimeCheck.js)
+  * [PrimeFactors](https://github.com/TheAlgorithms/Javascript/blob/master/Maths/PrimeFactors.js)
   * [ReversePolishNotation](https://github.com/TheAlgorithms/Javascript/blob/master/Maths/ReversePolishNotation.js)
   * [SieveOfEratosthenes](https://github.com/TheAlgorithms/Javascript/blob/master/Maths/SieveOfEratosthenes.js)
   * [Softmax](https://github.com/TheAlgorithms/Javascript/blob/master/Maths/Softmax.js)