To determine if 1564 is a prime number or a composite number, we simply look at the factors for 1564.
If the factors of 1564 are only 1564 and 1, then we know that 1564 is a prime number. Otherwise, 1564 is a composite number.
To explain better, if 1564 is only divisible by 1 and 1564, then it is a prime number, and if 1564 is divisible by more than 1564 and 1, then it is a composite number.
The factors of 1564 are as follows:
1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564
Therefore, since 1564 is divisible by more than one and itself, the answer to the
question "Is 1564 prime or composite?" is highlighted in blue below.
composite
Is 1565 prime or composite?
OK. Now you know that 1564 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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