To determine if 8445 is a prime number or a composite number, we simply look at the factors for 8445.
If the factors of 8445 are only 8445 and 1, then we know that 8445 is a prime number. Otherwise, 8445 is a composite number.
To explain better, if 8445 is only divisible by 1 and 8445, then it is a prime number, and if 8445 is divisible by more than 8445 and 1, then it is a composite number.
The factors of 8445 are as follows:
1, 3, 5, 15, 563, 1689, 2815, 8445
Therefore, since 8445 is divisible by more than one and itself, the answer to the
question "Is 8445 prime or composite?" is highlighted in blue below.
composite
Is 8446 prime or composite?
OK. Now you know that 8445 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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