To determine if 1329 is a prime number or a composite number, we simply look at the factors for 1329.
If the factors of 1329 are only 1329 and 1, then we know that 1329 is a prime number. Otherwise, 1329 is a composite number.
To explain better, if 1329 is only divisible by 1 and 1329, then it is a prime number, and if 1329 is divisible by more than 1329 and 1, then it is a composite number.
The factors of 1329 are as follows:
1, 3, 443, 1329
Therefore, since 1329 is divisible by more than one and itself, the answer to the
question "Is 1329 prime or composite?" is highlighted in blue below.
composite
Is 1330 prime or composite?
OK. Now you know that 1329 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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