What are Prime Numbers and Composite Numbers? #4

This video covers what prime and composite numbers are, and how we can tell whether a particular number is prime or composite.

Key points:
- Prime numbers are only divisible by themselves and 1.
- Composite numbers are any number that isn't prime.
- 0 doesn't count as prime or composite.

Suitable for courses across the world, including all KS3 and GCSE courses in the UK.

Maths Playlist:

GCSE Chemistry playlist:

GCSE Biology Playlist:

GCSE Physics Playlist:

[Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[chillwithmoi]

YOU ARE A LIFE SAVER!! I WAS SO CONFUSED ABOUT PRIMES BUT NOW I UNDERSTAND!!!

[liono]

Allah has led me to your channel in the time of distress.

[HadiBxing]

You have turned my life around if I pass my gcse's its beacuse of you tysm

[Nourhan]

Thank you so much for your great and fabulous work💙.. i just have a question.. what about 0 and 1..
I took nefore that we call the number as an even when it has more than 1 factor but less than 3.. it means 2..
And one has only 1 factor.. so it is neither..
And zero has infinite factors so it is a composite number.. but composit must have finite number.. so it is neither like 1..
And also yhe negative numbers can we classified tham as prime and composite numbers.. because the answer when i asked that question was yes and no..
So i don't know what is the smallest prime number (2?) and the smallest composit number (4?)..

[Arman_tech_]

Thank you sir you teach me different between prime no and composite no before seeing this vedio i am confused between that no

[NoorImran-mj]

Your a literal life saver I was so confused in prime numbers and composite numbers ❤❤❤❤❤

[zorabuckmire]

The Lord led me to this video in my time of distress....thank God for you! Wish you were my math teacher.

[eviemaleah]

For those who were just here for composite numbers it’s at 2:17

[akshtpatel]

When are you doing a level videos on maths and chemistry

[simsationelle]

One great way to find a prime is to divide it by 3 or 7 and if it doesn’t divide even then it’s prime

[Noor_light]

May god bless you i have learned so much ❤

[momhomeschool]

Thank you, great way my 7th grader preferes you over many as he finds you clear and like your visual way to explain it ...subscribing as we will need you all year lol ;-)

[sbinti]

I didn't understand anything I'm dum

[Mystic_Linker]

Wait is 1 a composite or a prime or none?

[jazlenejames]

This is not helping me you the make my work more complicated😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭