diff --git a/src/main/java/com/williamfiset/algorithms/math/IsPrime.java b/src/main/java/com/williamfiset/algorithms/math/IsPrime.java
index c758b20f3..8344a2de7 100644
--- a/src/main/java/com/williamfiset/algorithms/math/IsPrime.java
+++ b/src/main/java/com/williamfiset/algorithms/math/IsPrime.java
@@ -27,5 +27,7 @@ public static void main(String[] args) {
     System.out.println(isPrime(31));
     System.out.println(isPrime(1433));
     System.out.println(isPrime(8763857775536878331L));
+    
+    // there are other prime cheking functions available.
   }
 }