To determine if 878 is a prime number or a composite number, we simply look at the factors for 878.
If the factors of 878 are only 878 and 1, then we know that 878 is a prime number. Otherwise, 878 is a composite number.
To explain better, if 878 is only divisible by 1 and 878, then it is a prime number, and if 878 is divisible by more than 878 and 1, then it is a composite number.
The factors of 878 are as follows:
1, 2, 439, 878
Therefore, since 878 is divisible by more than one and itself, the answer to the
question "Is 878 prime or composite?" is highlighted in blue below.
composite
Is 879 prime or composite?
OK. Now you know that 878 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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