diff --git a/jspp.js b/jspp.js
index 7a52ce1..50d44b4 100644
--- a/jspp.js
+++ b/jspp.js
@@ -14,16 +14,40 @@ class JSPlusPlus {
             async isToxic(sentences) {
 	            // Load the model. Users optionally pass in a threshold and an array of
 	            // labels to include.
-		    const gen = new JSPlusPlus.General
-                    gen.require("https://cdn.jsdelivr.net/npm/@tensorflow/tfjs")
-                    gen.require("https://cdn.jsdelivr.net/npm/@tensorflow-models/toxicity")
+		          const gen = new JSPlusPlus.General
+              gen.require("https://cdn.jsdelivr.net/npm/@tensorflow/tfjs")
+              gen.require("https://cdn.jsdelivr.net/npm/@tensorflow-models/toxicity")
 	            let threshold = 0.9;
 	            let t = await toxicity.load(threshold).then(model => {
 		            return model.classify(sentences).then(predictions => {
 			            return predictions
 		            });
 	            });
-		    return t
+		          return t
+            }
+
+            isPrime = num => {
+              for(let i = 2, s = Math.sqrt(num); i <= s; i++) {
+                  if(num % i === 0) return false;
+              }
+              return num > 1;
+            }
+          
+            sieve(siveTo) {
+              let primes = []
+              siveTo = Number(siveTo)
+          
+              for (var i = 1; i < siveTo; i++) {
+                  if (isPrime(i)) {
+                          primes.push(i)
+                  }
+              }
+          
+              if (isPrime(siveTo)) {
+                  primes.push(siveTo)
+              }
+          
+              return primes
             }
             
             async asyncSleep(ms) {