To determine if 8215 is a prime number or a composite number, we simply look at the factors for 8215.
If the factors of 8215 are only 8215 and 1, then we know that 8215 is a prime number. Otherwise, 8215 is a composite number.
To explain better, if 8215 is only divisible by 1 and 8215, then it is a prime number, and if 8215 is divisible by more than 8215 and 1, then it is a composite number.
The factors of 8215 are as follows:
1, 5, 31, 53, 155, 265, 1643, 8215
Therefore, since 8215 is divisible by more than one and itself, the answer to the
question "Is 8215 prime or composite?" is highlighted in blue below.
composite
Is 8216 prime or composite?
OK. Now you know that 8215 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.
|
|
