# Problem_5.py

"""

2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.

What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?

什么是能够整除(没有余数)从1到20之间的所有数字的最小正数字？

"""

for num in range(21, 99999999999):

    flag = True

    for i in range(1, 21):

        if not num % i == 0:

            flag = False

            break

    if flag:

        print(num)  #

        break