Everything You Need To Know About Divisibility by 18

What do you know about divisibility by 18? Do you know if a number is divisible by 18 if the last two digits are divisible by 18? In this blog post, we will answer all of your questions about divisibility by 18! We will discuss what it means to be divisible by 18, and we will give you some examples of numbers that are divisible by 18. We will also talk about how to determine whether a number is divisible by 18, and we will show you how to use a calculator to find out whether a number is divisible by 18. So, what are you waiting for? Start reading now!

What is divisibility?

Divisibility is a mathematical concept that refers to the ability to evenly divide one number by another. For example, if we take the number 12 and divide it by six, we get two because 12 is divisible by six (it goes into six evenly).

What is the test of divisibility of 18?

But what about divisibility by 18? Is p divisible by 18? Well, the divisibility test for 18 is a bit more complicated than the divisibility tests for the other numbers we’ve looked at so far. To test divisibility by 18, we need to use both the divisibility tests for divisibility by 2 and divisibility by 9 

18 has the first two factors of its divisor, so the divisibility test for 18 is as follows:

If a number is divisible by both of the divisors, then it is divisible by the number formed by multiplying them together. Therefore, a number is divisible by 18 if it is divisible by both divisors, that is if the number is divisible by two and nine.

Now, let us talk about the divisibility of 2 and the divisibility of 9.

So, a number is divisible by 2 will have 0 in the remainder

As for divisibility by nine, the divisibility test is as follows: if the total sum or addition of the digits of a number is divisible by 9, then the number is divisible by 9.

Divisibility by 18 examples:

Here’s how the divisibility test for 18 works:

First, take the number p and divide it by 18. If the remainder is 0, then p is divisible by 18.

For example, let’s take the number 1458. When we divide 1458 by 18, we get 81 with a remainder of 0. Since the remainder is 0, we can conclude that 1458 is divisible by 18.

Let’s try another example. This time, we’ll take the number 1729. When we divide 1729 by 18, we get 96 with a remainder of 96.055. Since the remainder is not 0, we can conclude that 1729 is not divisible by 18.

Example 3: Take the number -99. When we divide -99 by 18, we get -18 with a remainder of -81. Since the remainder is not 0, we can conclude that -99 is not divisible by 18.

The divisibility test for 18 can be summarized as follows: a number is divisible by 18 if it is divisible by the two divisors, that is if the number is divisible by two and nine.

Divisibility by 18 problems:

Now let’s put this divisibility test for divisibility by 18 into practice. Which of the following numbers is divisible by 18?

– 72

– 108

– 144

– 180

The divisibility rule for 18 is to check if the number is divisible by both 18 and nine.

Conclusion

Divisibility by 18 is a mathematical property that allows us to determine whether or not a number is evenly divisible by 18. In other words, when a number is divisible by 18, it means that the number can be evenly divided by 18 with no remainder. There are a few ways to determine whether or not a number is divisible by 18. One way is to simply divide the number by 18 and see if there is a remainder. If there is no remainder, then the number is divisible by 18. Another way to determine divisibility by 18 is to look for a common factor between the number 18. So there you have it! Everything you need to know about divisibility by 18. Now you can test your skills and see if you can divvy up those big numbers like a pro! Thanks for reading and happy math-ing!