To determine if 4218 is a prime number or a composite number, we simply look at the factors for 4218.
If the factors of 4218 are only 4218 and 1, then we know that 4218 is a prime number. Otherwise, 4218 is a composite number.
To explain better, if 4218 is only divisible by 1 and 4218, then it is a prime number, and if 4218 is divisible by more than 4218 and 1, then it is a composite number.
The factors of 4218 are as follows:
1, 2, 3, 6, 19, 37, 38, 57, 74, 111, 114, 222, 703, 1406, 2109, 4218
Therefore, since 4218 is divisible by more than one and itself, the answer to the
question "Is 4218 prime or composite?" is highlighted in blue below.
composite
Is 4219 prime or composite?
OK. Now you know that 4218 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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