© 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 is NOTprime number.

There is a short YouTube clip below to help you.

YouTube – Factors and Primes


  1. techyta
    Posted 11 January, 2016 at 5:42 pm | #

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

  2. Anonymous
    Posted 11 January, 2016 at 5:06 pm | #

    Do we do it on a piece of paper

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