To determine if 1398 is a prime number or a composite number, we simply look at the factors for 1398.
If the factors of 1398 are only 1398 and 1, then we know that 1398 is a prime number. Otherwise, 1398 is a composite number.
To explain better, if 1398 is only divisible by 1 and 1398, then it is a prime number, and if 1398 is divisible by more than 1398 and 1, then it is a composite number.
The factors of 1398 are as follows:
1, 2, 3, 6, 233, 466, 699, 1398
Therefore, since 1398 is divisible by more than one and itself, the answer to the
question "Is 1398 prime or composite?" is highlighted in blue below.
composite
Is 1399 prime or composite?
OK. Now you know that 1398 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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