To determine if 1509 is a prime number or a composite number, we simply look at the factors for 1509.
If the factors of 1509 are only 1509 and 1, then we know that 1509 is a prime number. Otherwise, 1509 is a composite number.
To explain better, if 1509 is only divisible by 1 and 1509, then it is a prime number, and if 1509 is divisible by more than 1509 and 1, then it is a composite number.
The factors of 1509 are as follows:
1, 3, 503, 1509
Therefore, since 1509 is divisible by more than one and itself, the answer to the
question "Is 1509 prime or composite?" is highlighted in blue below.
composite
Is 1510 prime or composite?
OK. Now you know that 1509 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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