To determine if 6428 is a prime number or a composite number, we simply look at the factors for 6428.
If the factors of 6428 are only 6428 and 1, then we know that 6428 is a prime number. Otherwise, 6428 is a composite number.
To explain better, if 6428 is only divisible by 1 and 6428, then it is a prime number, and if 6428 is divisible by more than 6428 and 1, then it is a composite number.
The factors of 6428 are as follows:
1, 2, 4, 1607, 3214, 6428
Therefore, since 6428 is divisible by more than one and itself, the answer to the
question "Is 6428 prime or composite?" is highlighted in blue below.
composite
Is 6429 prime or composite?
OK. Now you know that 6428 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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