A number aa is divisible by the number bb if a \div ba÷b has a remainder of zero (00). For example, 15 divided by 3 is exactly 5 which implies that its remainder is zero. We then say that 15 is divisible by 3.

In our other lesson, we discussed the divisibility rules for 7, 11, and 12. This time, we will cover the divisibility rules or tests for 2, 3, 4, 5, 6, 9, and 10. Believe me, you will be able to learn them very quickly because you may not know that you already have a basic and intuitive understanding of it. For instance, it is obvious that all even numbers are divisible by 2. That is pretty much the divisibility rule for 2. The goal of this divisibility rules lesson is to formalize what you already know.

Divisibility rules help us to determine if a number is divisible by another without going through the actual division process such as the long division method. If the numbers in question are numerically small enough, we may not need to use the rules to test for divisibility. However, for numbers whose values are large enough, we want to have some rules to serve as “shortcuts” to help us figure out if they are indeed divisible by each other.

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Step-by-step explanation:120 is the correct amswer

Divisibility Rules: 2, 3, 4, 5, 6, 9, and 10

A number aa is divisible by the number bb if a \div ba÷b has a remainder of zero (00). For example, 15 divided by 3 is exactly 5 which implies that its remainder is zero. We then say that 15 is divisible by 3.

In our other lesson, we discussed the divisibility rules for 7, 11, and 12. This time, we will cover the divisibility rules or tests for 2, 3, 4, 5, 6, 9, and 10. Believe me, you will be able to learn them very quickly because you may not know that you already have a basic and intuitive understanding of it. For instance, it is obvious that all even numbers are divisible by 2. That is pretty much the divisibility rule for 2. The goal of this divisibility rules lesson is to formalize what you already know.

Divisibility rules help us to determine if a number is divisible by another without going through the actual division process such as the long division method. If the numbers in question are numerically small enough, we may not need to use the rules to test for divisibility. However, for numbers whose values are large enough, we want to have some rules to serve as “shortcuts” to help us figure out if they are indeed divisible by each other.

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