To determine if 216 is a prime number or a composite number, we simply look at the factors for 216.
If the factors of 216 are only 216 and 1, then we know that 216 is a prime number. Otherwise, 216 is a composite number.
To explain better, if 216 is only divisible by 1 and 216, then it is a prime number, and if 216 is divisible by more than 216 and 1, then it is a composite number.
The factors of 216 are as follows:
1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216
Therefore, since 216 is divisible by more than one and itself, the answer to the
question "Is 216 prime or composite?" is highlighted in blue below.
composite
Is 217 prime or composite?
OK. Now you know that 216 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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