To determine if 866 is a prime number or a composite number, we simply look at the factors for 866.
If the factors of 866 are only 866 and 1, then we know that 866 is a prime number. Otherwise, 866 is a composite number.
To explain better, if 866 is only divisible by 1 and 866, then it is a prime number, and if 866 is divisible by more than 866 and 1, then it is a composite number.
The factors of 866 are as follows:
1, 2, 433, 866
Therefore, since 866 is divisible by more than one and itself, the answer to the
question "Is 866 prime or composite?" is highlighted in blue below.
composite
Is 867 prime or composite?
OK. Now you know that 866 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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