To determine if 218 is a prime number or a composite number, we simply look at the factors for 218.
If the factors of 218 are only 218 and 1, then we know that 218 is a prime number. Otherwise, 218 is a composite number.
To explain better, if 218 is only divisible by 1 and 218, then it is a prime number, and if 218 is divisible by more than 218 and 1, then it is a composite number.
The factors of 218 are as follows:
1, 2, 109, 218
Therefore, since 218 is divisible by more than one and itself, the answer to the
question "Is 218 prime or composite?" is highlighted in blue below.
composite
Is 219 prime or composite?
OK. Now you know that 218 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.
|
|
