Intermediate Algorithm Scripting - Sum All Primes

if the input is 10 the code works correctly but on the higher numbers like 977 something goes wrong.

function sumPrimes(num) {
    let result = 2
    for(let i = 2; i <= num; i++){

        for(let j = 2; j < i; j++){
            if(i % j !== 0){
                if(j == i - 1){
                result += i
            } else if(i % j == 0){
            j =  2
            if( i == num){

  return result;


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Challenge: Intermediate Algorithm Scripting - Sum All Primes

Link to the challenge:

What is different about the test cases? What is different about those two numbers, 10 and 977? OK, granted 977 is a difficult number. What I said that your code fails for 5, 7, and 11, among others.?

A big part of being a good programmer is being a good debugger, and that is mostly being a good detective.

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wat is the difference between your answer and the given correct answer?

You can add some console.log statements inside the code so you can see how the 977 is being handled and identify the issue.

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