From a1484394e1c84d4cf7b2bb5e7db0632f623855a3 Mon Sep 17 00:00:00 2001
From: MathBunny <horatiulazu@gmail.com>
Date: Fri, 29 Jul 2016 08:07:08 -0400
Subject: [PATCH 1/2] Fix BigNumber isPrime implementation to use BigNumber
 methods

---
 lib/function/utils/isPrime.js | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/lib/function/utils/isPrime.js b/lib/function/utils/isPrime.js
index 4b06b406a..50ffd822a 100644
--- a/lib/function/utils/isPrime.js
+++ b/lib/function/utils/isPrime.js
@@ -1,7 +1,10 @@
 'use strict';
 
-var deepMap = require('../../utils/collection/deepMap');
-var number = require('../../utils/number');
+var deepMap = require('../../utils/collection/deepMap'),
+    number = require('../../utils/number'),
+    map = require('../../../index'),
+    bitAnd = map.bitAnd;
+
 
 function factory (type, config, load, typed) {
   /**
@@ -35,7 +38,7 @@ function factory (type, config, load, typed) {
   var isPrime = typed('isPrime', {
     'number': function (x) {
       if (x < 2){
-        return false
+        return false;
       }
       if (x == 2){
         return true;
@@ -52,17 +55,17 @@ function factory (type, config, load, typed) {
     },
 
     'BigNumber': function (x) {
-      if (x < 2){
-        return false
-      }
-      if (x == 2){
-        return true;
-      }
-      if (x % 2 == 0){ 
+      if (x.lt(2)){
         return false;
       }
-      for (var i = 3; i * i <= x; i += 2){
-        if (x % i == 0){
+      if (x.equals(2)){
+        return true;
+      }
+      if (x.mod(2).isZero()){
+        return false;
+      }
+      for(var i = type.BigNumber(3); i.times(i).lte(x); i = i.plus(1)){
+        if (x.mod(i).isZero()){
           return false;
         }
       }

From 5a8b53f8eb9da899df3e471d53dd7307e66b4285 Mon Sep 17 00:00:00 2001
From: MathBunny <horatiulazu@gmail.com>
Date: Fri, 29 Jul 2016 12:13:13 -0400
Subject: [PATCH 2/2] Remove useless import

---
 lib/function/utils/isPrime.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/function/utils/isPrime.js b/lib/function/utils/isPrime.js
index 50ffd822a..2a1d415c5 100644
--- a/lib/function/utils/isPrime.js
+++ b/lib/function/utils/isPrime.js
@@ -2,8 +2,7 @@
 
 var deepMap = require('../../utils/collection/deepMap'),
     number = require('../../utils/number'),
-    map = require('../../../index'),
-    bitAnd = map.bitAnd;
+    map = require('../../../index');
 
 
 function factory (type, config, load, typed) {