diff --git a/src/index.js b/src/index.js
index 4c197d6..e39e2e6 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,5 +1,19 @@
-const trialDivision = (number) => {
-    
+const trialDivision = (num) => {
+  var quantity = 0;
+   var i = num;
+
+    while (i > 0){
+     if (num % i === 0){
+       quantity++;
+     }
+     i--;
+   }
+
+    if (quantity === 2){
+     return true;
+   }else{
+     return false;
+   }		   
   }
 
-  module.exports = trialDivision;
\ No newline at end of file
+  module.exports = trialDivision;