To determine if 7218 is a prime number or a composite number, we simply look at the factors for 7218.
If the factors of 7218 are only 7218 and 1, then we know that 7218 is a prime number. Otherwise, 7218 is a composite number.
To explain better, if 7218 is only divisible by 1 and 7218, then it is a prime number, and if 7218 is divisible by more than 7218 and 1, then it is a composite number.
The factors of 7218 are as follows:
1, 2, 3, 6, 9, 18, 401, 802, 1203, 2406, 3609, 7218
Therefore, since 7218 is divisible by more than one and itself, the answer to the
question "Is 7218 prime or composite?" is highlighted in blue below.
composite
Is 7219 prime or composite?
OK. Now you know that 7218 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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