**Tell us what’s happening:**

**Your code so far**

```
var sum = 0;
function multiplesOf3and5(number) {
// Good luck!
for(var i = 1; i < number; i++){
if((i % 3 === 0 )||(i % 5 === 0)||(i % 3 === 0 && i % 5 === 0)){
sum = sum + i;
}
}
return sum;
}
multiplesOf3and5(1000);
```

**Your browser information:**

User Agent is: `Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/66.0.3359.181 Chrome/66.0.3359.181 Safari/537.36`

.

**Link to the challenge:**

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