To determine if 8385 is a prime number or a composite number, we simply look at the factors for 8385.
If the factors of 8385 are only 8385 and 1, then we know that 8385 is a prime number. Otherwise, 8385 is a composite number.
To explain better, if 8385 is only divisible by 1 and 8385, then it is a prime number, and if 8385 is divisible by more than 8385 and 1, then it is a composite number.
The factors of 8385 are as follows:
1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2795, 8385
Therefore, since 8385 is divisible by more than one and itself, the answer to the
question "Is 8385 prime or composite?" is highlighted in blue below.
composite
Is 8386 prime or composite?
OK. Now you know that 8385 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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