To determine if 3871 is a prime number or a composite number, we simply look at the factors for 3871.
If the factors of 3871 are only 3871 and 1, then we know that 3871 is a prime number. Otherwise, 3871 is a composite number.
To explain better, if 3871 is only divisible by 1 and 3871, then it is a prime number, and if 3871 is divisible by more than 3871 and 1, then it is a composite number.
The factors of 3871 are as follows:
1, 7, 49, 79, 553, 3871
Therefore, since 3871 is divisible by more than one and itself, the answer to the
question "Is 3871 prime or composite?" is highlighted in blue below.
composite
Is 3872 prime or composite?
OK. Now you know that 3871 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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