To determine if 4815 is a prime number or a composite number, we simply look at the factors for 4815.
If the factors of 4815 are only 4815 and 1, then we know that 4815 is a prime number. Otherwise, 4815 is a composite number.
To explain better, if 4815 is only divisible by 1 and 4815, then it is a prime number, and if 4815 is divisible by more than 4815 and 1, then it is a composite number.
The factors of 4815 are as follows:
1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605, 4815
Therefore, since 4815 is divisible by more than one and itself, the answer to the
question "Is 4815 prime or composite?" is highlighted in blue below.
composite
Is 4816 prime or composite?
OK. Now you know that 4815 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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