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I want to learn about: Divisibility

Content about divisibility in elementary mathematics. Here you will find information about divisibility adapted for elementary aged children to make learning mathematics easier and more fun.

Apr06

The Reason for Divisibility Criteria

Sometimes we may be interested in knowing if one number is divisible by another, without having to perform a division. This is especially useful when we work with large numbers that require a lot of time for completing calculations. If you would like to refresh your memory on divisibility criteria, take a look at this […]

Sep02

What is Factorial Decomposition?

In today’s post we are going to answer the question, what is factorial decomposition? I hope that by the end of the post you’ll have it crystal clear. Definition of Factorial Decomposition We are going to start by remembering what a ”factor” is in mathematics. A factor is every number that is multiplied by another. […]

Dec24

Some Prime Number Curiosities

For this entry, we are going to learn some surprising facts about prime numbers. We would recommend reading our post about prime numbers and composite numbers first, to refresh your knowledge about these numbers. Are you ready to move on? Perfect! I’m sure that you know it is possible to write some numbers as products of […]

Sep29

Follow 8 Easy Steps to Factor a Number

In this entry, we’re going to explain how to break down or factor a number to its prime numbers step by step. Before we start anything, feel free to look at these entries where we explain what “factoring” means and what a prime number is so you can refresh your memory. Factorization How to factor […]

Aug07

Divisibility Guidelines for 5 and Some Examples

In this post we will learn the criteria of divisibility by 5. A number is divisible by 5 when dividing the number by 5 results in a remainder of zero. But how can we know without having to complete the division? Here we show you the easiest way.   Divisibility criteria for 5: To determine if a number is […]

Jun07

Follow the Divisibility Guidelines for 3

In the post for this week, I will explain the criteria for the divisibility of 3. When they ask you “Is this number divisible by 3?”  The most intuitive thing to do is to divide that number by 3, and if the remainder is zero then the number itself is divisible by 3. For example: One […]

May10

Divisibility Criteria from 2 to 13 and an Example

The criteria for divisibility are guidelines that help us to quickly know if a number is divisible or not. In other words, it lets us know if a number divides evenly or not. The criteria for divisibility are very useful. They help us easily find the divisors of a given number. They are especially helpful […]