To determine if 8638 is a prime number or a composite number, we simply look at the factors for 8638.
If the factors of 8638 are only 8638 and 1, then we know that 8638 is a prime number. Otherwise, 8638 is a composite number.
To explain better, if 8638 is only divisible by 1 and 8638, then it is a prime number, and if 8638 is divisible by more than 8638 and 1, then it is a composite number.
The factors of 8638 are as follows:
1, 2, 7, 14, 617, 1234, 4319, 8638
Therefore, since 8638 is divisible by more than one and itself, the answer to the
question "Is 8638 prime or composite?" is highlighted in blue below.
composite
Is 8639 prime or composite?
OK. Now you know that 8638 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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