To determine if 1503 is a prime number or a composite number, we simply look at the factors for 1503.
If the factors of 1503 are only 1503 and 1, then we know that 1503 is a prime number. Otherwise, 1503 is a composite number.
To explain better, if 1503 is only divisible by 1 and 1503, then it is a prime number, and if 1503 is divisible by more than 1503 and 1, then it is a composite number.
The factors of 1503 are as follows:
1, 3, 9, 167, 501, 1503
Therefore, since 1503 is divisible by more than one and itself, the answer to the
question "Is 1503 prime or composite?" is highlighted in blue below.
composite
Is 1504 prime or composite?
OK. Now you know that 1503 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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