To determine if 8427 is a prime number or a composite number, we simply look at the factors for 8427.
If the factors of 8427 are only 8427 and 1, then we know that 8427 is a prime number. Otherwise, 8427 is a composite number.
To explain better, if 8427 is only divisible by 1 and 8427, then it is a prime number, and if 8427 is divisible by more than 8427 and 1, then it is a composite number.
The factors of 8427 are as follows:
1, 3, 53, 159, 2809, 8427
Therefore, since 8427 is divisible by more than one and itself, the answer to the
question "Is 8427 prime or composite?" is highlighted in blue below.
composite
Is 8428 prime or composite?
OK. Now you know that 8427 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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