To determine if 1565 is a prime number or a composite number, we simply look at the factors for 1565.
If the factors of 1565 are only 1565 and 1, then we know that 1565 is a prime number. Otherwise, 1565 is a composite number.
To explain better, if 1565 is only divisible by 1 and 1565, then it is a prime number, and if 1565 is divisible by more than 1565 and 1, then it is a composite number.
The factors of 1565 are as follows:
1, 5, 313, 1565
Therefore, since 1565 is divisible by more than one and itself, the answer to the
question "Is 1565 prime or composite?" is highlighted in blue below.
composite
Is 1566 prime or composite?
OK. Now you know that 1565 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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