To determine if 8115 is a prime number or a composite number, we simply look at the factors for 8115.
If the factors of 8115 are only 8115 and 1, then we know that 8115 is a prime number. Otherwise, 8115 is a composite number.
To explain better, if 8115 is only divisible by 1 and 8115, then it is a prime number, and if 8115 is divisible by more than 8115 and 1, then it is a composite number.
The factors of 8115 are as follows:
1, 3, 5, 15, 541, 1623, 2705, 8115
Therefore, since 8115 is divisible by more than one and itself, the answer to the
question "Is 8115 prime or composite?" is highlighted in blue below.
composite
Is 8116 prime or composite?
OK. Now you know that 8115 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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