# Get factors of number

11 March 2022 (Updated 14 March 2022)

You want a function that takes an integer and returns all its factors from one up to the number itself. Something like this:

```
factors(20) // [1, 2, 4, 5, 10, 20]
factors(121) // [1, 11, 121]
```

Here’s how:

```
const factors = (num) => {
const factorsList = []
for (let n = 1; n <= num; n++) {
if (num % n === 0) {
factorsList.push(n)
}
}
return factorsList
}
```

Tagged:
Algorithms