Find factors

For positive integers only.

by Matthew Day

JavaScript

function getFactors(num) {
  let _arr = [];
  for(let i = 1; i <= num; i++) {
  	if(num % i === 0 && _arr.indexOf(i) < 0) {
    	_arr.push(i);
    }
  }
  console.log(_arr);
}

getFactors(21);