To determine if 817 is a prime number or a composite number, we simply look at the factors for 817.
If the factors of 817 are only 817 and 1, then we know that 817 is a prime number. Otherwise, 817 is a composite number.
To explain better, if 817 is only divisible by 1 and 817, then it is a prime number, and if 817 is divisible by more than 817 and 1, then it is a composite number.
The factors of 817 are as follows:
1, 19, 43, 817
Therefore, since 817 is divisible by more than one and itself, the answer to the
question "Is 817 prime or composite?" is highlighted in blue below.
composite
Is 818 prime or composite?
OK. Now you know that 817 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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