To determine if 8419 is a prime number or a composite number, we simply look at the factors for 8419.
If the factors of 8419 are only 8419 and 1, then we know that 8419 is a prime number. Otherwise, 8419 is a composite number.
To explain better, if 8419 is only divisible by 1 and 8419, then it is a prime number, and if 8419 is divisible by more than 8419 and 1, then it is a composite number.
The factors of 8419 are as follows:
1, 8419
Therefore, since 8419 is divisible by only one and itself, the answer to the
question "Is 8419 prime or composite?" is highlighted in blue below.
prime
Is 8420 prime or composite?
OK. Now you know that 8419 is a prime 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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