To determine if 219 is a prime number or a composite number, we simply look at the factors for 219.
If the factors of 219 are only 219 and 1, then we know that 219 is a prime number. Otherwise, 219 is a composite number.
To explain better, if 219 is only divisible by 1 and 219, then it is a prime number, and if 219 is divisible by more than 219 and 1, then it is a composite number.
The factors of 219 are as follows:
1, 3, 73, 219
Therefore, since 219 is divisible by more than one and itself, the answer to the
question "Is 219 prime or composite?" is highlighted in blue below.
composite
Is 220 prime or composite?
OK. Now you know that 219 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.
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