A prime number is a number that has only two factors, itself and 1. Some examples are 2,3,5,7,11,13,…
1 is not a prime number because it has only one factor, that is, itself unlike 2 which has itself and 1 as its factors. All prime numbers are odd numbers except 2 which is an even number.
Example 1
Write out all prime numbers between I and 30
Solution
Between 1 and 30.
Prime numbers = 2,3,5,7,119………..
1 is not a prime number because it has only one factor, that is, itself unlike 2 which has itself and 1 as its factors. All prime numbers are odd numbers except 2 which is an even number.
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