To determine if 213 is a prime number or a composite number, we simply look at the factors for 213.
If the factors of 213 are only 213 and 1, then we know that 213 is a prime number. Otherwise, 213 is a composite number.
To explain better, if 213 is only divisible by 1 and 213, then it is a prime number, and if 213 is divisible by more than 213 and 1, then it is a composite number.
The factors of 213 are as follows:
1, 3, 71, 213
Therefore, since 213 is divisible by more than one and itself, the answer to the
question "Is 213 prime or composite?" is highlighted in blue below.
composite
Is 214 prime or composite?
OK. Now you know that 213 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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