To determine if 8455 is a prime number or a composite number, we simply look at the factors for 8455.
If the factors of 8455 are only 8455 and 1, then we know that 8455 is a prime number. Otherwise, 8455 is a composite number.
To explain better, if 8455 is only divisible by 1 and 8455, then it is a prime number, and if 8455 is divisible by more than 8455 and 1, then it is a composite number.
The factors of 8455 are as follows:
1, 5, 19, 89, 95, 445, 1691, 8455
Therefore, since 8455 is divisible by more than one and itself, the answer to the
question "Is 8455 prime or composite?" is highlighted in blue below.
composite
Is 8456 prime or composite?
OK. Now you know that 8455 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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