To determine if 8515 is a prime number or a composite number, we simply look at the factors for 8515.
If the factors of 8515 are only 8515 and 1, then we know that 8515 is a prime number. Otherwise, 8515 is a composite number.
To explain better, if 8515 is only divisible by 1 and 8515, then it is a prime number, and if 8515 is divisible by more than 8515 and 1, then it is a composite number.
The factors of 8515 are as follows:
1, 5, 13, 65, 131, 655, 1703, 8515
Therefore, since 8515 is divisible by more than one and itself, the answer to the
question "Is 8515 prime or composite?" is highlighted in blue below.
composite
Is 8516 prime or composite?
OK. Now you know that 8515 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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