diff --git a/sive.js b/sive.js
index 0c01ca8..bc3a7d0 100644
--- a/sive.js
+++ b/sive.js
@@ -23,7 +23,9 @@ rl.question('Sive to: ', (siveTo) => {
         }
     }
 
-    primes.push(siveTo)
+    if (isPrime(siveTo)) {
+        primes.push(siveTo)
+    }
 
     console.table(primes)