To determine if 9911 is a prime number or a composite number, we simply look at the factors for 9911.
If the factors of 9911 are only 9911 and 1, then we know that 9911 is a prime number. Otherwise, 9911 is a composite number.
To explain better, if 9911 is only divisible by 1 and 9911, then it is a prime number, and if 9911 is divisible by more than 9911 and 1, then it is a composite number.
The factors of 9911 are as follows:
1, 11, 17, 53, 187, 583, 901, 9911
Therefore, since 9911 is divisible by more than one and itself, the answer to the
question "Is 9911 prime or composite?" is highlighted in blue below.
composite
Is 9912 prime or composite?
OK. Now you know that 9911 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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