Sum All Primes - I solved it but it's not working in FCC. It works in JSbin and


I was trying to solve the Intermediate Algorithm Scripting: Sum All Primes problem. I came up with the code below and it worked in jsbin and but it’s not being accepted in freecodecamp.

I know it’s not that good. It seems quite a brute way of solving the problem. But this is what I could come up with at my current state.

Please let me know if there is any problem with this.

sumPrimes(977)` should return 73156 part is not working on FCC but it gives correct answer on jsbin or


Mycode so far

function sumPrimes(num) {
  let prime = [];
  let factors = [];
  for (let i=1; i<=num; i++){
    factors = [];
    for (let j=1; j<=i; j++){
      if (i%j==0){
     if (factors.length<=2){
  prime = prime.reduce((a, b) => a+b);  
  return prime ;


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Link to the challenge:

Your algorithm is not efficient enough to not set off the test suite’s infinite loop protection feature. All the challenges can be solved with an efficient algorithm which will not cause infinite loop protection to activate.

So, inefficiency is the reason.I guess I have to find another way then.