To determine if 8728 is a prime number or a composite number, we simply look at the factors for 8728.
If the factors of 8728 are only 8728 and 1, then we know that 8728 is a prime number. Otherwise, 8728 is a composite number.
To explain better, if 8728 is only divisible by 1 and 8728, then it is a prime number, and if 8728 is divisible by more than 8728 and 1, then it is a composite number.
The factors of 8728 are as follows:
1, 2, 4, 8, 1091, 2182, 4364, 8728
Therefore, since 8728 is divisible by more than one and itself, the answer to the
question "Is 8728 prime or composite?" is highlighted in blue below.
composite
Is 8729 prime or composite?
OK. Now you know that 8728 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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