To determine if 7818 is a prime number or a composite number, we simply look at the factors for 7818.
If the factors of 7818 are only 7818 and 1, then we know that 7818 is a prime number. Otherwise, 7818 is a composite number.
To explain better, if 7818 is only divisible by 1 and 7818, then it is a prime number, and if 7818 is divisible by more than 7818 and 1, then it is a composite number.
The factors of 7818 are as follows:
1, 2, 3, 6, 1303, 2606, 3909, 7818
Therefore, since 7818 is divisible by more than one and itself, the answer to the
question "Is 7818 prime or composite?" is highlighted in blue below.
composite
Is 7819 prime or composite?
OK. Now you know that 7818 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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