To determine if 581 is a prime number or a composite number, we simply look at the factors for 581.
If the factors of 581 are only 581 and 1, then we know that 581 is a prime number. Otherwise, 581 is a composite number.
To explain better, if 581 is only divisible by 1 and 581, then it is a prime number, and if 581 is divisible by more than 581 and 1, then it is a composite number.
The factors of 581 are as follows:
1, 7, 83, 581
Therefore, since 581 is divisible by more than one and itself, the answer to the
question "Is 581 prime or composite?" is highlighted in blue below.
composite
Is 582 prime or composite?
OK. Now you know that 581 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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