To determine if 1315 is a prime number or a composite number, we simply look at the factors for 1315.
If the factors of 1315 are only 1315 and 1, then we know that 1315 is a prime number. Otherwise, 1315 is a composite number.
To explain better, if 1315 is only divisible by 1 and 1315, then it is a prime number, and if 1315 is divisible by more than 1315 and 1, then it is a composite number.
The factors of 1315 are as follows:
1, 5, 263, 1315
Therefore, since 1315 is divisible by more than one and itself, the answer to the
question "Is 1315 prime or composite?" is highlighted in blue below.
composite
Is 1316 prime or composite?
OK. Now you know that 1315 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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