To determine if 538 is a prime number or a composite number, we simply look at the factors for 538.
If the factors of 538 are only 538 and 1, then we know that 538 is a prime number. Otherwise, 538 is a composite number.
To explain better, if 538 is only divisible by 1 and 538, then it is a prime number, and if 538 is divisible by more than 538 and 1, then it is a composite number.
The factors of 538 are as follows:
1, 2, 269, 538
Therefore, since 538 is divisible by more than one and itself, the answer to the
question "Is 538 prime or composite?" is highlighted in blue below.
composite
Is 539 prime or composite?
OK. Now you know that 538 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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