To determine if 7881 is a prime number or a composite number, we simply look at the factors for 7881.
If the factors of 7881 are only 7881 and 1, then we know that 7881 is a prime number. Otherwise, 7881 is a composite number.
To explain better, if 7881 is only divisible by 1 and 7881, then it is a prime number, and if 7881 is divisible by more than 7881 and 1, then it is a composite number.
The factors of 7881 are as follows:
1, 3, 37, 71, 111, 213, 2627, 7881
Therefore, since 7881 is divisible by more than one and itself, the answer to the
question "Is 7881 prime or composite?" is highlighted in blue below.
composite
Is 7882 prime or composite?
OK. Now you know that 7881 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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