To determine if 523 is a prime number or a composite number, we simply look at the factors for 523.
If the factors of 523 are only 523 and 1, then we know that 523 is a prime number. Otherwise, 523 is a composite number.
To explain better, if 523 is only divisible by 1 and 523, then it is a prime number, and if 523 is divisible by more than 523 and 1, then it is a composite number.
The factors of 523 are as follows:
1, 523
Therefore, since 523 is divisible by only one and itself, the answer to the
question "Is 523 prime or composite?" is highlighted in blue below.
prime
Is 524 prime or composite?
OK. Now you know that 523 is a prime 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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