To determine if 418 is a prime number or a composite number, we simply look at the factors for 418.
If the factors of 418 are only 418 and 1, then we know that 418 is a prime number. Otherwise, 418 is a composite number.
To explain better, if 418 is only divisible by 1 and 418, then it is a prime number, and if 418 is divisible by more than 418 and 1, then it is a composite number.
The factors of 418 are as follows:
1, 2, 11, 19, 22, 38, 209, 418
Therefore, since 418 is divisible by more than one and itself, the answer to the
question "Is 418 prime or composite?" is highlighted in blue below.
composite
Is 419 prime or composite?
OK. Now you know that 418 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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