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:
            break

for i in range(len(num_list)):
    prime_str += str(num_list[i])
    if i < len(num_list)-1:
        prime_str += "*"
    else:
        break

print("数字%s = %s"%(get_str,prime_str))

python练习笔记——分解质因数-LMLPHP

质数表

05-13 02:57