To determine if 6415 is a prime number or a composite number, we simply look at the factors for 6415.
If the factors of 6415 are only 6415 and 1, then we know that 6415 is a prime number. Otherwise, 6415 is a composite number.
To explain better, if 6415 is only divisible by 1 and 6415, then it is a prime number, and if 6415 is divisible by more than 6415 and 1, then it is a composite number.
The factors of 6415 are as follows:
1, 5, 1283, 6415
Therefore, since 6415 is divisible by more than one and itself, the answer to the
question "Is 6415 prime or composite?" is highlighted in blue below.
composite
Is 6416 prime or composite?
OK. Now you know that 6415 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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