To determine if 9871 is a prime number or a composite number, we simply look at the factors for 9871.
If the factors of 9871 are only 9871 and 1, then we know that 9871 is a prime number. Otherwise, 9871 is a composite number.
To explain better, if 9871 is only divisible by 1 and 9871, then it is a prime number, and if 9871 is divisible by more than 9871 and 1, then it is a composite number.
The factors of 9871 are as follows:
1, 9871
Therefore, since 9871 is divisible by only one and itself, the answer to the
question "Is 9871 prime or composite?" is highlighted in blue below.
prime
Is 9872 prime or composite?
OK. Now you know that 9871 is a prime 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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