**Tell us what’s happening:**

**Your code so far**

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

**Your browser information:**

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36`

.

**Challenge:** Problem 1: Multiples of 3 and 5

**Link to the challenge:**

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