To determine if 1505 is a prime number or a composite number, we simply look at the factors for 1505.
If the factors of 1505 are only 1505 and 1, then we know that 1505 is a prime number. Otherwise, 1505 is a composite number.
To explain better, if 1505 is only divisible by 1 and 1505, then it is a prime number, and if 1505 is divisible by more than 1505 and 1, then it is a composite number.
The factors of 1505 are as follows:
1, 5, 7, 35, 43, 215, 301, 1505
Therefore, since 1505 is divisible by more than one and itself, the answer to the
question "Is 1505 prime or composite?" is highlighted in blue below.
composite
Is 1506 prime or composite?
OK. Now you know that 1505 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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