To determine if 2018 is a prime number or a composite number, we simply look at the factors for 2018.
If the factors of 2018 are only 2018 and 1, then we know that 2018 is a prime number. Otherwise, 2018 is a composite number.
To explain better, if 2018 is only divisible by 1 and 2018, then it is a prime number, and if 2018 is divisible by more than 2018 and 1, then it is a composite number.
The factors of 2018 are as follows:
1, 2, 1009, 2018
Therefore, since 2018 is divisible by more than one and itself, the answer to the
question "Is 2018 prime or composite?" is highlighted in blue below.
composite
Is 2019 prime or composite?
OK. Now you know that 2018 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
|
|
