To determine if 6645 is a prime number or a composite number, we simply look at the factors for 6645.
If the factors of 6645 are only 6645 and 1, then we know that 6645 is a prime number. Otherwise, 6645 is a composite number.
To explain better, if 6645 is only divisible by 1 and 6645, then it is a prime number, and if 6645 is divisible by more than 6645 and 1, then it is a composite number.
The factors of 6645 are as follows:
1, 3, 5, 15, 443, 1329, 2215, 6645
Therefore, since 6645 is divisible by more than one and itself, the answer to the
question "Is 6645 prime or composite?" is highlighted in blue below.
composite
Is 6646 prime or composite?
OK. Now you know that 6645 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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