To determine if 7389 is a prime number or a composite number, we simply look at the factors for 7389.
If the factors of 7389 are only 7389 and 1, then we know that 7389 is a prime number. Otherwise, 7389 is a composite number.
To explain better, if 7389 is only divisible by 1 and 7389, then it is a prime number, and if 7389 is divisible by more than 7389 and 1, then it is a composite number.
The factors of 7389 are as follows:
1, 3, 9, 821, 2463, 7389
Therefore, since 7389 is divisible by more than one and itself, the answer to the
question "Is 7389 prime or composite?" is highlighted in blue below.
composite
Is 7390 prime or composite?
OK. Now you know that 7389 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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