分解质因数:输入一个正整数，分解质因数:

如输入: 90   则打印: 90 = 2 * 3 * 3 * 5

get_str = input("请输入一个100以内的正整数，以分解质因数：")get_num = int(get_str)prime_str = ""prime_list = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97]num_list = []for i in range(25):    while True:        if get_num % prime_list[i] == 0:            num_list.append(prime_list[i])            get_num /= prime_list[i]            continue        else:            breakfor i in range(len(num_list)):    prime_str += str(num_list[i])    if i < len(num_list)-1:        prime_str += "*"    else:        breakprint("数字%s = %s"%(get_str,prime_str))

 

质数表