To determine if 816 is a prime number or a composite number, we simply look at the factors for 816.
If the factors of 816 are only 816 and 1, then we know that 816 is a prime number. Otherwise, 816 is a composite number.
To explain better, if 816 is only divisible by 1 and 816, then it is a prime number, and if 816 is divisible by more than 816 and 1, then it is a composite number.
The factors of 816 are as follows:
1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816
Therefore, since 816 is divisible by more than one and itself, the answer to the
question "Is 816 prime or composite?" is highlighted in blue below.
composite
Is 817 prime or composite?
OK. Now you know that 816 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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