Maths problem:

Question

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?

Answer 1

Stated another way, find the least common multiple (LCM) that all the numbers 1 to 20 have in common. Start with the LCM of the first two numbers. Then find the LCM of the next number and the previous LCM, and so on...
Here is a solution in Python:
https://code.sololearn.com/cVdeq1pc2lXf/?ref=app

Answer 2

https://code.sololearn.com/W4jeKmSp4o7i/?ref=app