题解 | #质数因子#

let num = parseInt(readline());
let arr = [] // 结果数组
let i = 2;
while(i <= num && i * i <= num) { // 没有这个判断超时 i * i <= num
    if (num % i === 0) {
        arr.push(i)
        num /= i
        i = 2   
    } else {
        i++
    }
}

if (num != 1) {
    arr.push(num)
}    


console.log(`${arr}`.replace(/,/g, ' '))