To determine if 2439 is a prime number or a composite number, we simply look at the factors for 2439.
If the factors of 2439 are only 2439 and 1, then we know that 2439 is a prime number. Otherwise, 2439 is a composite number.
To explain better, if 2439 is only divisible by 1 and 2439, then it is a prime number, and if 2439 is divisible by more than 2439 and 1, then it is a composite number.
The factors of 2439 are as follows:
1, 3, 9, 271, 813, 2439
Therefore, since 2439 is divisible by more than one and itself, the answer to the
question "Is 2439 prime or composite?" is highlighted in blue below.
composite
Is 2440 prime or composite?
OK. Now you know that 2439 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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