To determine if 8605 is a prime number or a composite number, we simply look at the factors for 8605.
If the factors of 8605 are only 8605 and 1, then we know that 8605 is a prime number. Otherwise, 8605 is a composite number.
To explain better, if 8605 is only divisible by 1 and 8605, then it is a prime number, and if 8605 is divisible by more than 8605 and 1, then it is a composite number.
The factors of 8605 are as follows:
1, 5, 1721, 8605
Therefore, since 8605 is divisible by more than one and itself, the answer to the
question "Is 8605 prime or composite?" is highlighted in blue below.
composite
Is 8606 prime or composite?
OK. Now you know that 8605 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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