题解 | #质数因子#
质数因子
https://www.nowcoder.com/practice/196534628ca6490ebce2e336b47b3607
import math n = int(input()) for i in range(2,int(math.sqrt(n))+1): while n % i == 0: print(i,end = ' ') n = n // i if n > 2: print(n)
不必遍历所有的数,因为一个数的质数因子肯定是小于“它的开方+1”