Prime Factorisation

Prime Factorisation

Welcome to your revision lesson on Prime Factorisation.

By the end of this, you should be a MASTER at listing prime factors of any number.

LET'S GO!!

Prime Factors

A factor that is a prime number.

In other words: any of the prime numbers that can be multiplied to give the original number.

Example: The prime factors of 15 are 3 and 5 (because 3×5=15, and 3 and 5 are prime numbers).

Example

Using the factor tree, we can see the breakdown of the factors of 32.

All prime numbers are circled.

The product of all the circled prime numbers would give me 32.

Click on the link to watch a short video explaining how to find the prime factors of any number. Be sure to take down notes you don't already have.

https://www.youtube.com/watch?v=FL4MPqfbFbw

Open Ended

What are the Prime factors of 50?

GREAT!!!

Now you're ready to go complete your quiz!

Good luck.