To determine if 1323 is a prime number or a composite number, we simply look at the factors for 1323.
If the factors of 1323 are only 1323 and 1, then we know that 1323 is a prime number. Otherwise, 1323 is a composite number.
To explain better, if 1323 is only divisible by 1 and 1323, then it is a prime number, and if 1323 is divisible by more than 1323 and 1, then it is a composite number.
The factors of 1323 are as follows:
1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323
Therefore, since 1323 is divisible by more than one and itself, the answer to the
question "Is 1323 prime or composite?" is highlighted in blue below.
composite
Is 1324 prime or composite?
OK. Now you know that 1323 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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