To determine if 9878 is a prime number or a composite number, we simply look at the factors for 9878.
If the factors of 9878 are only 9878 and 1, then we know that 9878 is a prime number. Otherwise, 9878 is a composite number.
To explain better, if 9878 is only divisible by 1 and 9878, then it is a prime number, and if 9878 is divisible by more than 9878 and 1, then it is a composite number.
The factors of 9878 are as follows:
1, 2, 11, 22, 449, 898, 4939, 9878
Therefore, since 9878 is divisible by more than one and itself, the answer to the
question "Is 9878 prime or composite?" is highlighted in blue below.
composite
Is 9879 prime or composite?
OK. Now you know that 9878 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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