To determine if 1523 is a prime number or a composite number, we simply look at the factors for 1523.
If the factors of 1523 are only 1523 and 1, then we know that 1523 is a prime number. Otherwise, 1523 is a composite number.
To explain better, if 1523 is only divisible by 1 and 1523, then it is a prime number, and if 1523 is divisible by more than 1523 and 1, then it is a composite number.
The factors of 1523 are as follows:
1, 1523
Therefore, since 1523 is divisible by only one and itself, the answer to the
question "Is 1523 prime or composite?" is highlighted in blue below.
prime
Is 1524 prime or composite?
OK. Now you know that 1523 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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