What is the smallest number that is evenly divisible by all the numbers from 1 to 20? You may want to use your knowledge of least common multiple to find the answer.

The work must be shown.

60 is the smallest number that can be divided by each of the numbers from 1 to 5 without any remainders.

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

Hint: write each number as the product of prime factors.