Prime Numbers Explained
This video explains what prime numbers are and how to find out if a number is a prime or not. Practice questions are at the end of the video.
For a refresher on factors see our video: • What Are The Multiples And Factors Of A Nu...
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00:00 Introduction
00:22 What is a prime number
01:32 Is the number one a prime number?
01:55 How to check if a number is a prime
03:13 The first twenty prime numbers
03:41 Practice questions
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