Is 20 a multiple of 21?
Here we will illustrate two ways to figure out if 20 is a multiple of 21.
One way would be to list all of the multiples of 21 and check if 20 is one of the numbers.
Multiples of 21 are 21, 42, 63, 84, 105, 126, 147, 168, 189, 210 and so on.
Since 20 is not on the list of multiples of 21, the answer to the question "Is 20 a multiple of 21?" is: No.
Another way, would be to simply divide 20 by 21. If the result is a positive integer, then 20 is a multiple of 21.
20 divided by 21 equals 0.952, which is not a positive integer. Once again, the answer to our question is: No.
Is 20 a multiple of 22?
Use one of the methods we used on this page to find the next question on our list.