题解 | #字符串分隔#
质数因子
http://www.nowcoder.com/practice/196534628ca6490ebce2e336b47b3607
const readline = require('readline')
var rl = readline.createInterface({
input:process.stdin,
output:process.stdout
})
var num = 0
rl.on('line',(line)=>{
num = parseInt(line)
})
rl.on('close',()=>{
var res = ''
var i = 2
// num等于1找到最后一个质数
while(num != 1){
// 取余等于0，说明这个质数不在会出现，此时i++,换下一个进行循环
while(num % i == 0){
res = res + i + ' '
num = num / i
}
i++
}
console.log(res)
}) 
