To determine if 9939 is a prime number or a composite number, we simply look at the factors for 9939.
If the factors of 9939 are only 9939 and 1, then we know that 9939 is a prime number. Otherwise, 9939 is a composite number.
To explain better, if 9939 is only divisible by 1 and 9939, then it is a prime number, and if 9939 is divisible by more than 9939 and 1, then it is a composite number.
The factors of 9939 are as follows:
1, 3, 3313, 9939
Therefore, since 9939 is divisible by more than one and itself, the answer to the
question "Is 9939 prime or composite?" is highlighted in blue below.
composite
Is 9940 prime or composite?
OK. Now you know that 9939 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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