**Tell us what’s happening:**

It seems that tests for this challenge are not valid. I’ve tested my solution locally and results are as they should be.

**Your code so far**

```
function multiplesOf3And5(number) {
const factors = [3, 5];
let resultsSet = new Set();
factors.forEach(factor => {
for (let i = 1; i < number; i++) {
let product = i * factor;
if (product < number) {
resultsSet.add(product);
} else {
break;
}
};
});
const result = [...resultsSet].reduce((sum, num) => sum + num, 0);
return result;
}
multiplesOf3and5(1000);
```

**Your browser information:**

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36`

.

**Link to the challenge:**

https://learn.freecodecamp.org/coding-interview-prep/project-euler/problem-1-multiples-of-3-and-5