To determine if 872 is a prime number or a composite number, we simply look at the factors for 872.
If the factors of 872 are only 872 and 1, then we know that 872 is a prime number. Otherwise, 872 is a composite number.
To explain better, if 872 is only divisible by 1 and 872, then it is a prime number, and if 872 is divisible by more than 872 and 1, then it is a composite number.
The factors of 872 are as follows:
1, 2, 4, 8, 109, 218, 436, 872
Therefore, since 872 is divisible by more than one and itself, the answer to the
question "Is 872 prime or composite?" is highlighted in blue below.
composite
Is 873 prime or composite?
OK. Now you know that 872 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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