Nodejs Number Prime Number Check primeFactorization()

Method Source Code

Number.prototype.primeFactorization = function () {

    var ans = [];
    var primes = [];
    var temp = this;
    for (let i = 2; i <= temp / 2; i++) {
        if (i.divisors().length == 2) {
            primes.push(i);//from  www  .  j ava 2s .  co m
        }
    }

    for (let i = 0; i < primes.length; i++) {
        while (temp.isDevisor(primes[i])) {
            ans.push(primes[i]);
            temp = temp / primes[i];
        }
    }

    return ans;
}

Related

1. isPrime()

   Number.prototype.isPrime = function () {
     var i = 2;
     while (i<=this - 1) {
       if (this % i ==0) {
         return false;
         break;
       i++;
     if (i == this) {
       return true;
   };
   

2. primeFactorization()

   Number.prototype.primeFactorization = function(){
        var ans = [];
       var primes = [];
       var temp = this;
       for(let i=2; i<=this/2; i++){
           if(i.divisors().length==2){
               primes.push(i)
       for(let i = 0; i<primes.length;i++){
           while(temp.isDivisor(primes[i])){
               ans.push(primes[i]);
               temp = temp/primes[i];
       return ans;
   

3. primeFactorization()

   Number.prototype.primeFactorization = function() {
     var ans = [];
     var primes = [];
     var temp = this;
     for (let i = 0; i <= temp/2; i++) {
       if (i.allDivisors().length == 2) {
         primes.push(i)
     for (let i = 0; i < primes.length; i++) {
       while (temp.isDivisor(primes[i])) {
         ans.push(primes[i]);
         temp = temp / primes[i];
     console.log(ans);
   

4. primeFactorization()

   Number.prototype.primeFactorization = function(){
     var ans = [];
     var temp = this;
     var primes = [];
     for(let i = 2;i<=this/2;i++){
       if(i.divisors().length == 2){
         primes.push(i);
         if(temp==1){
           break;
   ...
   

5. primeFactorization()

   Number.prototype.primeFactorization = function () {
       var ans = [];
       var primes = [];
       var temp = this;
       for (let i = 2; i <= temp / 2; i++) {
           if (i.divisors().length == 2) {
               primes.push(i);
       for (let i = 0; i < primes.length; i++) {
           while (i.isDivisor(temp)) {
               ans.push(primes[i]);
               temp = temp / primes[i];
       return ans;
   

6. primeFactorization()

   Number.prototype.primeFactorization = function (){
       console.log("prime aangekomen");
       var ans = [];
       var primes = [];
       var temp = this;
       for(let i = 2; i<temp/2; i++){
           if(i.divisors().length == 2){
               primes.push(i);
       for (let i =0; i<primes.length; i++){
               while(temp.isDivisor(primes[i])){
                   ans.push(primes[i]);
                   temp = temp/primes[i];
       return ans;
   };
   

7. primeFactorization()

   Number.prototype.primeFactorization = function () {
       "use strict";
       var ans = [];
       var primes = [];
       var temp = this;
       for (let i = 2; i <= this / 2; i += 1) {
           if (i.divisors().length == 2) {
               primes.push(i);
       for (let i = 0; i < primes.length; i += 1) {
           while (temp.isDivisor(primes[i])) {
               ans.push(primes[i]);
               temp = temp / primes[i];
       return ans;
   };
   

8. primeFactors()

   "use strict";
   Number.prototype.primeFactors = function() {
     var v, i;
     v = null;
     for (i = 2; i < this - 1; i += 1) {
       if (this % i === 0) {
         v = i;
         break;
     if (v) {
       return [v].concat(Math.floor(this / v).primeFactors());
     } else {
       return [this];
   };
   console.log(Math.max.apply(null, (600851475143).primeFactors()));
   

9. primeFactors()

   "use strict";
   var i, j, triangleNumber;
   Number.prototype.primeFactors = function() {
     var v, i;
     v = null;
     for (i = 2; i < this - 1; i += 1) {
       if (this % i === 0) {
         v = i;
         break;
   ...