To determine if 9921 is a prime number or a composite number, we simply look at the factors for 9921.
If the factors of 9921 are only 9921 and 1, then we know that 9921 is a prime number. Otherwise, 9921 is a composite number.
To explain better, if 9921 is only divisible by 1 and 9921, then it is a prime number, and if 9921 is divisible by more than 9921 and 1, then it is a composite number.
The factors of 9921 are as follows:
1, 3, 3307, 9921
Therefore, since 9921 is divisible by more than one and itself, the answer to the
question "Is 9921 prime or composite?" is highlighted in blue below.
composite
Is 9922 prime or composite?
OK. Now you know that 9921 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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