To determine if 1587 is a prime number or a composite number, we simply look at the factors for 1587.
If the factors of 1587 are only 1587 and 1, then we know that 1587 is a prime number. Otherwise, 1587 is a composite number.
To explain better, if 1587 is only divisible by 1 and 1587, then it is a prime number, and if 1587 is divisible by more than 1587 and 1, then it is a composite number.
The factors of 1587 are as follows:
1, 3, 23, 69, 529, 1587
Therefore, since 1587 is divisible by more than one and itself, the answer to the
question "Is 1587 prime or composite?" is highlighted in blue below.
composite
Is 1588 prime or composite?
OK. Now you know that 1587 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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