© 2016 techyta
## Homework: Think of a number, any number…

As long as it’s a **two digit** number. Numbers, such as **84**, have two digits. Many other numbers also have two digits. In fact, all the numbers from 10-99 are two digit numbers!

First, choose a two digit number and write it down.

Then, write down all the **factors** of that number. For example, the number **12** has **six** factors. These are **1**, **2**, **3**, **4**, **6** and **12**

Think of it like this:

**1** x **12** = 12

**2** x **6** = 12

**3** x **4** = 12

Next, circle any of the **factors** which you believe are **prime** numbers.

What is a **prime **number? A **prime** number is a number with only **two factors.**

Remember, the number **1 **is **NOT** a **prime** number.

There is a short YouTube clip below to help you.

YouTube – Factors and Primes

## 2 Comments

The fact that you chose to ask the question anonymously makes me think you already know the answer. Mr O

Do we do it on a piece of paper