To determine if 6621 is a prime number or a composite number, we simply look at the factors for 6621.
If the factors of 6621 are only 6621 and 1, then we know that 6621 is a prime number. Otherwise, 6621 is a composite number.
To explain better, if 6621 is only divisible by 1 and 6621, then it is a prime number, and if 6621 is divisible by more than 6621 and 1, then it is a composite number.
The factors of 6621 are as follows:
1, 3, 2207, 6621
Therefore, since 6621 is divisible by more than one and itself, the answer to the
question "Is 6621 prime or composite?" is highlighted in blue below.
composite
Is 6622 prime or composite?
OK. Now you know that 6621 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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