To determine if 1009 is a prime number or a composite number, we simply look at the factors for 1009.
If the factors of 1009 are only 1009 and 1, then we know that 1009 is a prime number. Otherwise, 1009 is a composite number.
To explain better, if 1009 is only divisible by 1 and 1009, then it is a prime number, and if 1009 is divisible by more than 1009 and 1, then it is a composite number.
The factors of 1009 are as follows:
1, 1009
Therefore, since 1009 is divisible by only one and itself, the answer to the
question "Is 1009 prime or composite?" is highlighted in blue below.
prime
Is 1010 prime or composite?
OK. Now you know that 1009 is a prime 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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